Publications

TitleAbstractYear
Filter
PMID
Filter
epidemiological studies of plague in india: 2. the changing pattern of rodents and fleas in calcutta and other cities.data from early in the twentieth century up to the present day indicate that rattus rattus among rodents and xenopsylla cheopis among fleas are the two most important elements in urban human plague infection in india, r. norvegicus playing a more minor role. the relative numbers of both these species have decreased in recent years in bombay and calcutta, while those of bandicota bengalensis, which is less heavily parasitized by x. cheopis, have risen. this reduction in the numbers of the epidemi ...196020604076
isolation and multilocus genotyping of toxoplasma gondii in seronegative rodents in brazil.synanthropic rodents, mainly rats and mice, become ecologically associated with men due to changes in their ecosystems caused by human activities. these animals may take part in the epidemiological cycles of several diseases, including toxoplasmosis. the presence of serum antibodies to toxoplasma gondii in 43 rodents captured in the urban area of umuarama, pr, brazil, was verified by modified agglutination test (mat). brain and heart samples were also collected and bioassayed in mice for the iso ...201020869811
the role of wild rodents in the transmission of trypanosoma evansi infection in an endemic area of the canary islands (spain).trypanosoma evansi was diagnosed for the first time in camels in the canary islands in 1997. several sanitary measures including treatment of infected animals were taken; however, nowadays a little area is still infected. in order to determine possible reservoirs 138 wild rodents were trapped, 64 of them in the infected farms and the remaining 74 in other areas. the captured species were rattus rattus (24), rattus norvegicus (69) and mus musculus domesticus (45). serological (catt/t. evansi), pa ...201020888126
molecular survey of rodent-borne trypanosoma in niger with special emphasis on t. lewisi imported by invasive black rats.invading rodent species can harbor parasites with potential transmission to native rodents and/or humans. to investigate trypanosomes prevalence in rodents, the spleen of 76 rodents from niger identified by their karyotype was used as a dna source for trypanosoma detection using a newly developed qpcr assay. of the invasive black rat, rattus rattus, 71% (10/14) were pcr positive as well as 6% (4/62) of native african rodents. sequences of ~400bp of the ssu rdna gene identified phylogenetically c ...201021126503
seasonal abundance of plague vector xenopsylla brasiliensis from rodents captured in three habitat types of periurban suburbs of harare, zimbabwe.abstract the study was aimed at determining the seasonal abundance of xenopsylla brasiliensis, an important vector of plague in zimbabwe, from rodent hosts captured in selected habitat types of two periurban suburbs of harare, zimbabwe. the removal-trapping method was used to capture the rodents, from which fleas were collected and identified. percentage incidence index (pii) and specific flea index (sfi) were calculated for x. brasiliensis in relation to rodent species host. mastomys natalensis ...201021142965
the occurrence of the larval cestode cysticercus fasciolaris in rodent populations from the cuxtal ecological reserve, yucatan, mexico.cysticercus fasciolaris is the larval stage of the cestode taenia taeniaeformis, whose definitive hosts are mainly cats. this larval stage uses a wide variety of small rodents, and occasionally birds and humans, as intermediate hosts. in the yucatan, there are no reports of the presence of this cestode in animal populations. the aim of this study was to evaluate the occurrence of c. fasciolaris in rodent populations from the cuxtal ecological reserve, yucatan, mexico. trapping of rodents was con ...201121208511
accurate measurement of body weight and food intake in environmentally enriched male wistar rats.laboratory animals are crucial in the study of energy homeostasis. in particular, rats are used to study alterations in food intake and body weight. to accurately record food intake or energy expenditure it is necessary to house rats individually, which can be stressful for social animals. environmental enrichment may reduce stress and improve welfare in laboratory rodents. however, the effect of environmental enrichment on food intake and thus experimental outcome is unknown. we aimed to determ ...201121233804
infestation rate of tick, mite and lice among rodent species in menoufia governorate, egypt.a preliminary survey of domestic rodent species and their ectoparasites tick, mite and lice was carried out in ten centers of menoufia (quesna, shebeen el-kom, berka el-saabe, el-bagour, el-shohada, tala, menoff, searth el-lian, ashmon and el-sadat) governorate. frequency of rodent species and ectoparasites indices (tick, mite and lice) were recorded in spring (2009). the main species of rodent was norway rat, rattus norvegicus, the grey-bellied rat, rattus rattus alexandrinus, the white-bellied ...201021246950
isoenzyme electrophetic characterization of leishmania major, the causative agent of zoonotic cutaneous leishmaniasis in north and west saudi arabia.several expeditions were carried out to four localities (al-madinah almona-warah, tabouk region, al-jouf and northern frontiers regions) in northern and western saudi arabia for sampling zoonotic cutaneous leishmaniasis (zcl) cases from patients and rodents. biopsy samples were collected from 51 patients complaining of skin lesions, most of which (40 or 78.4%) proved to be zcl. amastigotes were detected in 33 patients (64.7%), but only 30 (58.9%) gave successful growth of promastigotes in the cu ...201021246954
response of predominant rodent borne diseases to difethialone anticoagulant rodenticide under laboratory conditions.susceptibility level to difethialone 0.0025% anticoagulant rodenticide by bioassay method were studied (during 2009 & 2010) to the norway rat rattus norvegicus and the roof rat rattus rattus trapped from giza and menoufia governorates (g) where anticoagulant rodenticides were used to control rodents for long periods. complete mortality was obtained for both species at two governorates within 3 days no-choice feeding test period, indicated to be susceptible to difethialone. the bait consumption a ...201021268533
epidemiological survey of angiostrongylus cantonensis in the west-central region of guangdong province, china.the study was to understand the angiostrongylus cantonensis infectious situation of rodent definitive host, snail intermediate host, and local residents in the west-central region of guangdong province in china. the snails achatina fulica and pomacea canaliculata collected from the survey place were digested with artificial gastric juice, and the third-stage larvae of a. cantonensis in the snails were examined under microscope. the heart and lung of rats captured from the survey place were taken ...201121301874
genetic monitoring detects an overlooked cryptic species and reveals the diversity and distribution of three invasive rattus congeners in south africa.south africa's long and extensive trade activity has ensured ample opportunities for exotic species introduction. whereas the rich biodiversity of endemic southern african fauna has been the focus of many studies, invasive vertebrates are generally overlooked despite potential impacts on biodiversity, health and agriculture. genetic monitoring of commensal rodents in south africa which uncovered the presence of rattus tanezumi, a south-east asian endemic not previously known to occur in africa, ...201121324204
occurrence of ectoparasites on rodents in sukhothai province, northern thailand.a survey of ectoparasites on rodents was carried out bimonthly from april 2008 to march 2009 in 3 districts of sukhothai province, northern thailand. a total of 130 rodents comprising 8 species of hosts were captured and examined for ectoparasites. the hosts examined were bandicota indica, bandicota savilei, rattus losea, rattus rattus, rattus exulans, rattus norvegicus, menetes berdmorei and tamiops mcclellandii. ninety-seven ectoparasites were collected: 1 species of tick (hemaphysalis bandico ...201021329306
cross-species surveillance of leptospira in domestic and peri-domestic animals in mahalla city, gharbeya governorate, egypt.a survey of 179 animals (black rats, dogs, sheep, buffaloes, cattle, donkeys, weasels, and cats) for leptospira infection was conducted in mahalla city (lower egypt). blood, urine, and kidney were collected and tested by culture, microscopic agglutination test (mat), and/or polymerase chain reaction (pcr). among rats, 26% were positive by pcr, including 7% that were also positive by culture for l. interrogans serovars grippotyphosa, pyrogenes, and icterohaemorrhagiae. l. borpetersenii serovar po ...201121363980
parasites of the nile rat in rural and urban regions of sudan.in this investigation on endoparasites (helminths) and ectoparasites of the nile rat (arvicanthis niloticus desmarest, 1822), a total of 220 nile rats were trapped from different regions of sudan during the period january 2003-january 2006. examination of different tissues, identification of parasites, effect of these parasites on the organs, the prevalence and intensity of infestation of the parasites and their relation to the habitat of the host, and sex-related infestations were considered. r ...200921392288
development of a new humane toxin for predator control in new zealand.the endemic fauna of new zealand evolved in the absence of mammalian predators and their introduction has been responsible for many extinctions and declines. introduced species including possums (trichosurus vulpecula kerr), ship rats (rattus rattus l.) and stoats (mustela erminea l.) are targeted to protect native birds. control methodologies currently rely largely on labor-intensive trapping or the use of increasingly unpopular poisons, or poisons that are linked with low welfare standards. he ...201021392319
factors explaining the abundance of rodents in the city of luang prabang, lao pdr, as revealed by field and household surveys.a field and a household survey, the latter of which included inspections and interviews with the residents of a total of 1370 properties, were conducted in 2004 in 30 villages of the city of luang prabang, lao pdr, in order to assess the degree of rodent infestation and to identify potential factors influencing infestations. roof rats, rattus rattus, and the polynesian rat, rattus exulans, were the only rodents found in the city, and trapping results showed a clear dominance of roof rats (80-90% ...200821396046
rodents as reservoirs of parasites in india.we monitored the prevalence of endoparasitic infections of rodents in punjab state, india, between january 2004 and december 2005. three species of wild rodents, namely the house rat, rattus rattus (n= 42), the lesser bandicoot rat, bandicota bengalensis (n= 34) and the indian gerbil, tatera indica (n= 15), were live-captured from houses and crop fields. examination of various organs revealed that the highest rates of endoparasitic infection occurred in r. rattus (40.5%), followed by b. bengalen ...200821396047
surveys of rodent-borne disease in thailand with a focus on scrub typhus assessment.the epidemiology of many rodent-borne diseases in south-east asia remains ill-defined. scrub typhus and lep-tospirosis are common and medically significant, while other zoonotic diseases, such as spotted fever group rickettsiae have been identified, but their overall medical significance is unknown. rodent surveillance was conducted from june 2002 to july 2004 in 18 provinces from thailand. traps were set up for one to three nights. blood and serum samples and animal tissue samples (liver, splee ...200821396076
some laelapine mites (acari: laelapidae) ectoparasitic on small mammals in the galapagos islands, including a new species of gigantolaelaps from aegialomys galapagoensis.abstract abstract: a collection of laelapine mites from small mammals in the galapagos islands is identified and their host distributions reviewed. two species of native rodents, aegialomys galapagoensis and nesoryzomys narboroughii, were infested only with laelapine species typical of neotropical oryzomyine rodents; rattus rattus was infested with laelaps nuttalli, a host-specific ectoparasite endemic to old world rattus. a synopsis of gigantolaelaps fonseca is provided and we describe a new la ...201121506821
[on the history of the spread of the black rat (rattus rattus l., 1758) in northwestern russia].data on the first reliable findings of subfossil remains of the black rat in north-western russia (vologda and vladimir oblasts) are given. the burying of the remains dates to the twelfth to thirteenth centuries. it is assumed that the spread of the black rat in the european part of russia in the middle ages was associated first of all with the development of trade.201121509989
[artyfechinostomum sufratyfex lane, 1915 (trematoda:echinostomatidae), a parasite of mammals in southern vietnam].trematoda artyfechinostomumn sufratyfex lane, 1915 was found in different mammal species of southern vietnam. original measurements of this species from domestic pig, black rat, and asian palm civet are given.201121598669
detection of rickettsia felis and rickettsia typhi and seasonal prevalence of fleas collected from small mammals at gyeonggi province in the republic of korea.abstract fleas were collected from live-captured small mammals to identify flea-borne pathogens, host associations, and seasonal prevalence of flea species, as part of the 65th medical brigade rodent-borne disease surveillance program at 20 military installations and training sites, gyeonggi province, republic of korea, 2005-2007. a total of 1251 fleas were recovered from 2833 small mammals. apodemus agrarius, the striped field mouse, accounted for 93.1% (2,637/2,833) of all small mammals captur ...201121612536
chromosomal polymorphism of rattus rattus (linnaeus, 1758) (rodentia: muridae) in central anatolia.in this study, conventionally stained, c- and ag-nor banded karyotypes of rattus rattus from central anatolia are presented. the karyotype of the specimens from ankara and (cankiri provinces consist of 2n = 38, nf = 60 and nfa = 58 while the karyotype of kirikkale specimens consist of 2n = 38 and nfa = 59 due to a heteromorphic autosome pair. the x is a large to medium sized acrocentric and the y chromosome is a small acrocentric in all examined specimens. constitutive heterochromatin is located ...201121614964
isolation and characterization of microsatellites in rattus rattus.we isolated and characterized 10 microsatellite loci in the black rat rattus rattus (muridae, rodentia), a widespread invasive species largely known to cause serious problems in agriculture and human health. polymorphism was studied in two populations, one from madagascar and one from senegal. it ranged from three to 12 alleles in madagascar, and from two to five alleles in senegal. together with the loci previously adapted from rattus norvegicus, this set of markers should allow the conduct of ...200821585929
the current status of fleas according to environmental changes in some governorates in egypt.a preliminary survey of domestic rodent and their fleas was carried out in different environmental governorates (ismailia, dakahlia, el-fayoum, north sinai and matrouh), egypt. flea index (number of flea/rodent) and percentage frequency of different flea species were recorded in spring (2009- 2010). the main rodent species found were the norway rat, rattus norvegicus, the grey-bellied rat, rattus rattus alexandrinus, the white- bellied rat, rattus rattus frugivorus, the house mouse, mus musculus ...201121634253
coxiella burnetii (q fever) in rattus norvegicus and rattus rattus at livestock farms and urban locations in the netherlands; could rattus spp. represent reservoirs for (re)introduction?the q fever outbreak in the netherlands in 2007-2010 prompted government interventions to reduce the human incidence by reduction of q fever shedding at dairy goat farms. mandatory hygiene measures were taken, including the control of animal reservoirs. it has been postulated that brown rats, through their commensal nature, form an important factor in the persistent dissemination of endemic circulating coxiella burnetii in nature to domestic animals, livestock and humans. here, the occurrence of ...201121640416
the island syndrome and population dynamics of introduced rats.the island syndrome predicts directional changes in the morphology and demography of insular vertebrates, due to changes in trophic complexity and migration rates caused by island size and isolation. however, the high rate of human-mediated species introductions to some islands also increases trophic complexity, and this will reduce the perceived insularity on any such island. we test four hypotheses on the role of increased trophic complexity on the island syndrome, using introduced black rats ...201121643994
origin of agouti-melanistic polymorphism in wild black rats (rattus rattus) inferred from mc1r gene sequences.we examined nucleotide changes that underlie coat color variation in black rats (the rattus rattus species complex), which show polymorphism in dorsal fur color, including either grayish brown (agouti) or black (melanistic) forms. we examined the full coding sequence of a gene known to produce melanism in other vertebrates-melanocortin-1-receptor gene mc1r (954 bp) -using samples of both r. rattus (with 2n = 38) and its close relative asian black rat (r. tanezumi; 2n = 42). we used 61 specimens ...201121800996
a survey of neospora caninum and toxoplasma gondii infection in urban rodents from brazil.abstract toxoplasma gondii is a protozoan parasite that infects humans and other warm blooded animals; it uses feral and domestic cats as the definitive hosts. neospora caninum is a protozoan parasite of animals whose life cycle is very similar to t. gondii, but uses canids as definitive hosts. small rodents play an important role in the life cycle of t. gondii and a few findings indicated that they may be natural intermediate hosts for n. caninum. the present study was aimed at identifying infe ...201121790367
the influence of spatio-temporal resource fluctuations on insular rat population dynamics.local spatio-temporal resource variations can strongly influence the population dynamics of small mammals. this is particularly true on islands which are bottom-up driven systems, lacking higher order predators and with high variability in resource subsidies. the influence of resource fluctuations on animal survival may be mediated by individual movement among habitat patches, but simultaneously analysing survival, resource availability and habitat selection requires sophisticated analytical met ...201121775327
genetic impacts of anacapa deer mice reintroductions following rat eradication.the anacapa deer mouse is an endemic subspecies that inhabits anacapa island, part of channel islands national park, california. we used mitochondrial dna cytochrome c oxidase subunit ii gene (coii) and 10 microsatellite loci to evaluate the levels of genetic differentiation and variation in ôê+1400 anacapa deer mice sampled before and for 4ôçâyears after a black rat (rattus rattus) eradication campaign that included trapping, captive holding and reintroduction of deer mice. both mitochondrial a ...201121711403
survey of angiostrongylus cantonensis in rats and giant african land snails in phitsanulok province, thailand.to survey the angiostrongylus cantonensis (a. cantonensis) or the rat lungworm in a rat, definitive host, and in a giant african land snail (achatina fulica), the intermediate host, in phitsanulok, thailand.201121914534
seroprevalence of toxoplasma gondii in domestic and wild animals from the fernando de noronha, brazil.abstract fernando de noronha is an archipelago of 21 islands and islets in the atlantic ocean, state of pernambuco, brazil, and has a varied biodiversity, including alien species or sinantropic animals. the objective here was to determine seroprevalence of toxoplasma gondii in domestic and wild animals from fernando de noronha archipelago, brazil. between july 2007 to may 2010, blood samples were collected from 764 animals (533 domestic and 231 wild animals). sera were tested by the indirect f ...201122150091
distribution and genetic variation of hymenolepidid cestodes in murid rodents on the canary islands (spain).in the canary islands there are no previous data about tapeworms (cestoda) of rodents. in order to identify the hymenolepidid species present in these hosts, a survey of 1,017 murine (349 rattus rattus, 13 rattus norvegicus and 655 mus musculus domesticus) was carried out in the whole archipelago. molecular studies based on nuclear its1 and mitochondrial coi loci were performed to confirm the identifications and to analyse the levels of genetic variation and differentiation.201121943096
Investigation of Chagas disease in four periurban areas in northeastern Brazil: epidemiologic survey in man, vectors, non-human hosts and reservoirs.Chagas disease was investigated in four periurban areas of Ceará state, northeastern Brazil, through serological, parasitological and molecular methods in humans, reservoirs and vectors. A cross-sectional survey revealed a seroprevalence rate of 1.2% (13/1076 residents, six also proving positive through PCR). Trypanosoma cruzi infection was not detected in children under 10 years old. Triatoma pseudomaculata prevailed in the peridomiciles: 63 specimens, 69% (34/49) infected with trypanosomatids. ...201122136953
phylogeography and molecular epidemiology of yersinia pestis in madagascar.plague was introduced to madagascar in 1898 and continues to be a significant human health problem. it exists mainly in the central highlands, but in the 1990s was reintroduced to the port city of mahajanga, where it caused extensive human outbreaks. despite its prevalence, the phylogeography and molecular epidemiology of y. pestis in madagascar has been difficult to study due to the great genetic similarity among isolates. we examine island-wide geographic-genetic patterns based upon whole-geno ...201121931876
multiple geographic origins of commensalism and complex dispersal history of black rats.the black rat (rattus rattus) spread out of asia to become one of the world's worst agricultural and urban pests, and a reservoir or vector of numerous zoonotic diseases, including the devastating plague. despite the global scale and inestimable cost of their impacts on both human livelihoods and natural ecosystems, little is known of the global genetic diversity of black rats, the timing and directions of their historical dispersals, and the risks associated with contemporary movements. we surv ...201122073158
epidemiological factors related to the transmission risk of trypanosoma cruzi in a quilombola community, state of mato grosso do sul, brazil.this work was an epidemiological investigation of the risk of trypanosoma cruzi transmission in the rural quilombola community of furnas do dionízio, state of mato grosso do sul, brazil.201122031072
invasive rats and recent colonist birds partially compensate for the loss of endemic new zealand pollinators.reported declines of pollinator populations around the world have led to increasing concerns about the consequences for pollination as a critical ecosystem function and service. pollination could be maintained through compensation if remaining pollinators increase their contribution or if novel species are recruited as pollinators, but empirical evidence of this compensation is so far lacking. using a natural experiment in new zealand where endemic vertebrate pollinators still occur on one offsh ...201122090388
seroprevalence of angiostrongylus cantonensis in wild rodents from the canary islands.angiostrongylus cantonensis is a lungworm of rats (muridae) that is the causative agent of human cerebral angiostrongyliasis. the life cycle of a. cantonensis involves rats and mollusks as the definitive and intermediate hosts, respectively. this study was designed to increase the knowledge about the occurrence and distribution of a. cantonensis in its definitive host in the canary islands, using parasitological and serological analysis in different areas and age groups.201122110752
Evaluating the anti-fertility potential of a-chlorohydrin on testis and spermatozoa in the adult male wild Indian house rat (Rattus rattus).To examine the effects of a-chlorohydrin on testis and cauda epididymis in the male house rat (Rattus rattus), 24 adult male rats were segregated into two groups. Group I rats were force-fed daily by intragastric intubation with a-chlorohydrin at a single dose of 1.0 mg/100 g body weight/d for 5, 15, and 45 days. Another group was fed with distilled water, which served as the control. The treated male rats were paired with 24 adult proestrus female rats for 5 days after the last oral treatment a ...201121967454
feed-through insecticides for the control of the sand fly phlebotomus argentipes.three rodent feed-through studies were conducted to evaluate the efficacy of insecticides to control phlebotomus argentipes (diptera: psychodidae). the initial test evaluated diflubenzuron, eprinomectin, fipronil and ivermectin as feed-through treatments in rattus rattus (rodentia: muridae). in the preliminary trial, all four insecticides yielded 100% mortality of p. argentipes larvae within 20 days of exposure to treated rodent faeces. based upon the initial results, fipronil was evaluated furt ...201223278322
establishment of a molecular tool for blood meal identification in malaysia.to establish a polymerase chain reaction (pcr) technique based on cytochrome b (cytb) gene of mitochondria dna (mtdna) for blood meal identification.201223569902
chagas' disease: an emergent urban zoonosis. the caracas valley (venezuela) as an epidemiological model.the unprecedented emergence of important public health and veterinary zoonoses is usually a result of exponential population growth and globalization of human activities. i characterized chagas' disease as an emergent zoonosis in the caracas valley (venezuela) due to the following findings: the presence of reservoirs (didelphis marsupialis, rattus rattus) and vectors (panstrongylus geniculatus, panstrongylus rufotuberculatus) infected with trypanosoma cruzi in urbanized or marginalized areas; th ...201425520950
16s rrna amplicon sequencing for epidemiological surveys of bacteria in wildlife.the human impact on natural habitats is increasing the complexity of human-wildlife interactions and leading to the emergence of infectious diseases worldwide. highly successful synanthropic wildlife species, such as rodents, will undoubtedly play an increasingly important role in transmitting zoonotic diseases. we investigated the potential for recent developments in 16s rrna amplicon sequencing to facilitate the multiplexing of the large numbers of samples needed to improve our understanding o ...201627822541
cross-sectional study of leptospira seroprevalence in humans, rats, mice, and dogs in a main tropical sea-port city.samples were collected from 128 symptomatic humans, 83 dogs, 49 mice, and 20 rats (rattus rattus: 16; rattus norvegicus: 4) in neighborhoods where human leptospirosis have been reported within the principal sea-port city of colombia. seroprevalences were assessed against 19 pathogenic, 1 intermediate pathogenic, and 1 saprophytic leptospira serogroups. pathogenic leptospira were confirmed using conventional leptospira-specific polymerase chain-reaction and pulsed-field gel electrophoresis analys ...201323149584
first isolates of leptospira spp., from rodents captured in angola.rodents play an important role in the transmission of pathogenic leptospira spp. however, in angola, neither the natural reservoirs of these spirochetes nor leptospirosis diagnosis has been considered. regarding this gap, we captured rodents in luanda and huambo provinces to identify circulating leptospira spp. rodent kidney tissue was cultured and dna amplified and sequenced. culture isolates were evaluated for pathogenic status and typing with rabbit antisera; polymerase chain reaction (pcr) a ...201626928840
similarities in leptospira serogroup and species distribution in animals and humans in the indian ocean island of mayotte.our objective was to identify local animal reservoirs of leptospirosis to explain the unusual features of leptospira strains recently described among patients on the island of mayotte. by means of a microscopic agglutination test using local clinical isolates, we found that 11.2% of black rats were seropositive to leptospira, whereas 10.2% of flying foxes, 2% of lemurs, 93.1% of domestic dogs, and 87.5% of stray dogs were seropositive. as observed in humans, mini was the main serogroup circulati ...201222764304
isolation and molecular characterization of leptospira interrogans and leptospira borgpetersenii isolates from the urban rat populations of kuala lumpur, malaysia.rats are considered the principal maintenance hosts of leptospira. the objectives of this study were isolation and identification of leptospira serovars circulating among urban rat populations in kuala lumpur. three hundred urban rats (73% rattus rattus and 27% r. norvegicus) from three different sites were trapped. twenty cultures were positive for leptospira using dark-field microscopy. r. rattus was the dominant carrier (70%). polymerase chain reaction (pcr) confirmed that all isolates were p ...201323358635
leptospirosis risk increases with changes in species composition of rat populations.rats are major reservoirs of leptospirosis and considered as a main threat to biodiversity. a recent introduction of rattus rattus to the island of futuna (western polynesia) provided the opportunity to test if a possible change in species composition of rat populations would increase the risk of leptospirosis to humans. we trapped rodents on wallis and futuna and assessed leptospira carriage in 357 rodents (rattus norvegicus, r. rattus, rattus exulans, and mus domesticus) from 2008 to 2012. whi ...201323535996
leptospirosis in vellore: a clinical and serological study.leptospirosis is a severe spirochetal zoonosis in the world. it is considered an occupational disease of persons engaged in agriculture, sewage works, forestry, and animal slaughtering. a study was conducted with an objective of assessing the seroprevalence of leptospirosis in and around vellore district, tamil nadu. the study was based on the signs and symptoms of the patients reporting fever in vellore municipal clinic (urban malarial scheme). blood samples were collected from 129 patients. an ...201425050124
the characteristics of wild rat (rattus spp.) populations from an inner-city neighborhood with a focus on factors critical to the understanding of rat-associated zoonoses.norway and black rats (rattus norvegicus and rattus rattus) are among the most ubiquitous urban wildlife species and are the source of a number of zoonotic diseases responsible for significant human morbidity and mortality in cities around the world. rodent ecology is a primary determinant of the dynamics of zoonotic pathogens in rodent populations and the risk of pathogen transmission to people, yet many studies of rat-associated zoonoses do not account for the ecological characteristics of urb ...201424646877
bacteria isolated from conspecific bite wounds in norway and black rats: implications for rat bite-associated infections in people.bites associated with wild and domestic norway and black rats (rattus norvegicus and rattus rattus) may have a variety of health consequences in people. bite-related infections are among the most significant of these consequences; however, there is little data on the infectious agents that can be transmitted from rats to people through biting. this is problematic because without an accurate understanding of bite-related infection risks, it is difficult for health professionals to evaluate the ad ...201424528094
carriage of clostridium difficile by wild urban norway rats (rattus norvegicus) and black rats (rattus rattus).clostridium difficile is an important cause of enteric infections in humans. recently, concerns have been raised regarding whether animals could be a source of c. difficile spores. although colonization has been identified in a number of domestic species, the ability of commensal pests to serve as a reservoir for c. difficile has not been well investigated. the objective of this study was to determine whether urban rats (rattus spp.) from vancouver, canada, carry c. difficile. clostridium diffic ...201424317079
identification of tenrec ecaudatus, a wild mammal introduced to mayotte island, as a reservoir of the newly identified human pathogenic leptospira mayottensis.leptospirosis is a bacterial zoonosis of major concern on tropical islands. human populations on western indian ocean islands are strongly affected by the disease although each archipelago shows contrasting epidemiology. for instance, mayotte, part of the comoros archipelago, differs from the other neighbouring islands by a high diversity of leptospira species infecting humans that includes leptospira mayottensis, a species thought to be unique to this island. using bacterial culture, molecular ...201627574792
whole-genome sequencing reveals genetic variation in the asian house rat.whole-genome sequencing of wild-derived rat species can provide novel genomic resources, which may help decipher the genetics underlying complex phenotypes. as a notorious pest, reservoir of human pathogens, and colonizer, the asian house rat, rattus tanezumi, is successfully adapted to its habitat. however, little is known regarding genetic variation in this species. in this study, we identified over 41,000,000 single-nucleotide polymorphisms, plus insertions and deletions, through whole-genome ...201627172215
determination of leptospira borgpetersenii serovar javanica and leptospira interrogans serovar bataviae as the persistent leptospira serovars circulating in the urban rat populations in peninsular malaysia.leptospirosis is an emerging infectious disease of global significance, and is endemic in tropical countries, including malaysia. over the last decade, a dramatic increase of human cases was reported; however, information on the primary vector, the rat, and the leptospira serovars circulating among the rat population is limited. therefore, the present study was undertaken to isolate leptospira and characterise the serovars circulating in the urban rat populations from selected main cities in pen ...201626927873
record of tropical rat mite, ornithonyssus bacoti (acari: mesostigmata: macronyssidae) from domestic and peridomestic rodents (rattus rattus) in nilgiris, tamil nadu, india.tropical rat mite (ornithonyssus bacoti) is reported from many parts of the world and is considered important in transmitting rickettsial pathogens. there have been scanty reports on prevalence of this parasite from india. following a recent report of o. bacoti infestation in a laboratory mice colony from nilgiris, tamil nadu, india, attempts were made to detect the parasite in its natural reservoir, ie the domestic and peridomestic rats (rattus rattus).201527047977
detection of a yersinia pestis gene homologue in rodent samples.a homologue to a widely used genetic marker, pla, for yersinia pestis has been identified in tissue samples of two species of rat (rattus rattus and rattus norvegicus) and of mice (mus musculus and apodemus sylvaticus) using a microarray based platform to screen for zoonotic pathogens of interest. samples were from urban locations in the uk (liverpool) and canada (vancouver). the results indicate the presence of an unknown bacterium that shares a homologue for the pla gene of yersinia pestis, so ...201627602258
ecology of cutaneous leishmaniasis in sinai: linking parasites, vectors and hosts.cutaneous leishmaniasis (cl) is a neglected clinical form of public health importance that is quite prevalent in the northern and eastern parts of egypt. a comprehensive study over seven years (january 2005-december 2011) was conducted to track cl transmission with respect to both sandfly vectors and animal reservoirs. the study identified six sandfly species collected from different districts in north sinai: phlebotomus papatasi, phlebotomus kazeruni, phlebotomus sergenti, phlebotomus alexandri ...201424821060
trypanosoma (megatrypanum) lainsoni n. sp. from mesomys hispidus (rodentia: echimyidae) in brazil: trypomastigotes described from experimentally infected laboratory mice.we report the detection, isolation and description of trypanosoma (megatrypanum) lainsoni n. sp. from a caviomorph rodent, mesomys hispidus (rodentia: echimyidae), obtained in the rio negro region of the state of amazonas, in northern brazil. laboratory-bred white mice (mus musculus) and rats (rattus rattus) were inoculated with large numbers of culture forms by intraperitoneal route, and trypomastigotes appeared in their blood 3-8 days post-inoculation. one single epimastigote was also found in ...201324309069
rickettsia typhi in rodents and r. felis in fleas in yucatán as a possible causal agent of undefined febrile cases.rickettsia typhi is the causal agent of murine typhus; a worldwide zoonotic and vector-borne infectious disease, commonly associated with the presence of domestic and wild rodents. human cases of murine typhus in the state of yucatán are frequent. however, there is no evidence of the presence of rickettsia typhi in mammals or vectors in yucatán. the presence of rickettsia in rodents and their ectoparasites was evaluated in a small municipality of yucatán using the conventional polymerase chain r ...025923891
identification of phlebotomine sand fly blood meals by real-time pcr.phlebotomine sand flies are blood-feeding insects of great medical and veterinary significance acting as vectors of leishmania parasites. studying the blood-feeding pattern of these insects may help in the understanding of their interactions with potential reservoir hosts of leishmania parasites. in this study, we developed real time pcr assays for the identification of sand fly blood meal.201525889289
potential of eucalyptus oil as repellent against house rat, rattus rattus.rodent repellents are chemicals which by taste or odour or possibly by both will prevent animal from feeding or gnawing. such substances may be used in protecting an area from rodent infestation or in protecting packaged food, packing materials, electric cables, and other important vulnerable materials. mature and healthy house rat, rattus rattus of both sexes, was exposed to 5, 10, and 20% eucalyptus oil applied as spray in laboratory pens in bichoice tests. each concentration was applied throu ...201424523633
prevalence and diversity of bartonella species in commensal rodents and ectoparasites from nigeria, west africa.bartonellae are fastidious bacteria causing persistent bacteremia in humans and a wide variety of animals. in recent years there is an increasing interest in mammalian bartonelloses in general and in rodent bartonelloses in particular. to date, no studies investigating the presence of bartonella spp. in rodents and ectoparasites from nigeria were carried out.201323738028
infectiousness of sylvatic and synanthropic small rodents implicates a multi-host reservoir of leishmania (viannia) braziliensis.the possibility that a multi-host wildlife reservoir is responsible for maintaining transmission of leishmania (viannia) braziliensis causing human cutaneous and mucocutaneous leishmaniasis is tested by comparative analysis of infection progression and infectiousness to sandflies in rodent host species previously shown to have high natural infection prevalences in both sylvatic or/and peridomestic habitats in close proximity to humans in northeast brazil.201526448187
chikungunya antibodies detected in non-human primates and rats in three indian ocean islands after the 2006 chikv outbreak.the role of terrestrial vertebrates in the epidemiology of chikungunya disease is poorly understood. we evaluated their exposure and amplification role during the 2006 chikungunya outbreak in the indian ocean. blood samples were collected from 18 mammalian and reptile species from reunion island, mauritius and mayotte. among the 1051 samples serologically tested for chikungunya virus (chikv), two crab-eating macaques (macaca fascicularis) and two ship rats (rattus rattus) proved to be exposed to ...201424885529
barriers to seed and seedling survival of once-common hawaiian palms: the role of invasive rats and ungulates.mammalian herbivores can limit plant recruitment and affect forest composition. loulu palms (pritchardia spp.) once dominated many lowland ecosystems in hawai'i, and non-native rats (rattus spp.), ungulates (e.g. pigs sus scrofa, goats capra hircus) and humans have been proposed as major causes of their decline. in lowland wet forest, we experimentally determined the vulnerability of seeds and seedlings of two species of pritchardia, p. maideniana and p. hillebrandii, by measuring their removal ...201526019231
an epidemiological study of a. cantonensis in jamaica subsequent to an outbreak of human cases of eosinophilic meningitis in 2000.the infection status of angiostrongylosis in jamaica was assessed in wild rats and molluscs in the 5 years following the major outbreak of eosinophilic meningitis (em) in 2000. parasitological analyses of 297 rattus rattus and 140 rattus norvegicus, and 777 terrestrial molluscs from all 14 parishes on the island revealed angiostrongylus cantonensis in 32·0% of the rats and in 12·5% of the molluscs. multivariate analyses confirmed that a. cantonensis occurred significantly more frequently in r. r ...201627350332
a survey of angiostrongylus species in definitive hosts in queensland.despite the recent sporadic reports of angiostrongyliasis in humans, dogs and wildlife in eastern australia there has been no systematic study to explore the epidemiology of angiostrongylus spp. in definitive and intermediate hosts in the region. little is known about the epidemiology of angiostrongylus species in the definitive host in southeast queensland, since the only survey conducted in this region was performed in the late 1960s. in this study, free-living populations of rattus spp. were ...201526236633
detection of angiostrongylus cantonensis in the blood and peripheral tissues of wild hawaiian rats (rattus rattus) by a quantitative pcr (qpcr) assay.the nematode angiostrongylus cantonensis is a rat lungworm, a zoonotic pathogen that causes human eosinophilic meningitis and ocular angiostrongyliasis characteristic of rat lungworm (rlw) disease. definitive diagnosis is made by finding and identifying a. cantonensis larvae in the cerebral spinal fluid or by using a custom immunological or molecular test. this study was conducted to determine if genomic dna from a. cantonensis is detectable by qpcr in the blood or tissues of experimentally infe ...201525910229
angiostrongylus cantonensis and rat lungworm disease in brazil.the metastrongyloid nematode genus angiostrongylus includes 18 species, two of which are relevant from a medical standpoint, angiostrongylus costaricensis and angiostrongylus cantonensis. the first was described from costa rica in 1971 and causes abdominal angiostrongyliasis in the americas, including in brazil. angiostrongylus cantonensis, first described in 1935 from canton, china, is the causative agent of eosinophilic meningitis. the natural definitive hosts are rodents, and molluscs are the ...201323901376
rats, cities, people, and pathogens: a systematic review and narrative synthesis of literature regarding the ecology of rat-associated zoonoses in urban centers.urban norway and black rats (rattus norvegicus and rattus rattus) are the source of a number of pathogens responsible for significant human morbidity and mortality in cities around the world. these pathogens include zoonotic bacteria (leptospira interrogans, yersina pestis, rickettsia typhi, bartonella spp., streptobacillus moniliformis), viruses (seoul hantavirus), and parasites (angiostrongylus cantonensis). a more complete understanding of the ecology of these pathogens in people and rats is ...201323590323
endemic angiostrongyliasis in the brazilian amazon: natural parasitism of angiostrongylus cantonensis in rattus rattus and r. norvegicus, and sympatric giant african land snails, achatina fulica.angiostrongylus cantonensis, the rat lungworm, is one etiological agent of eosinophilic meningoencephalitis in humans. this zoonosis is frequently found in asia and, more recently, in north america, caribbean island and northeastern of south america. until now, research of a. cantonensis in southern, southeastern and northeastern regions of brazil has been found natural infections only terrestrial and freshwater intermediate snail hosts (achatina fulica, sarasinula marginata, subulina octona, br ...201323072946
biodiversity and macroparasitic distribution of the wild rat population of carey island, klang.a study to determine the diversity and distribution of ectoparasites and endoparasites infesting wild rat population of carey island was carried out from june to december 2010. a total of 81 rats were captured from various locations on carey island. four rat species were identified namely, rattus tiomanicus (45.7%), rattus rattus diardii (25.9%), rattus argentiventer (16%) and rattus norvegicus (12.3%). low diversity of ecto and endoparasites were observed infecting the rodent population with 8 ...201323959485
helminth communities from two urban rat populations in kuala lumpur, malaysia.the prevalence of parasitic infections among commensal animals such as black and brown rats in many tropical countries is high and in comparison with studies on rodents in temperate climates, little is known about the community structure of their parasites. rodent borne parasites pose threats to human health since people living in close proximity to rodent populations can be exposed to infection.201222397763
prevalence of antibody to hantaviruses in humans and rodents in the caribbean region of colombia determined using araraquara and maciel virus antigens.we tested sera from 286 agricultural workers and 322 rodents in the department of córdoba, northeastern colombia, for antibodies against two hantaviruses. the sera were analysed by indirect elisa using the lysate of vero e6 cells infected with maciel virus (macv) or the n protein of araraquara virus (arav) as antigens for the detection of antibodies against hantaviruses. twenty-four human sera were igg positive using one or both antigens. we detected anti-macv igg antibodies in 10 sera (3.5%) an ...201323579795
parasites and invasions: changes in gastrointestinal helminth assemblages in invasive and native rodents in senegal.understanding why some exotic species become widespread and abundant in their colonised range is a fundamental issue that still needs to be addressed. among many hypotheses, newly established host populations may benefit from a parasite loss ("enemy release" hypothesis) through impoverishment of their original parasite communities or reduced infection levels. moreover, the fitness of competing native hosts may be negatively affected by the acquisition of exotic taxa from invaders ("parasite spil ...201627670366
bartonella species in fleas from palestinian territories: prevalence and genetic diversity.bartonellosis is an infectious bacterial disease. the prevalence and genetic characteristics of bartonella spp. in fleas of wild and domestic animals from palestinian territories are described. flea samples (n=289) were collected from 121 cats, 135 dogs, 26 hyraxes and seven rats from northern (n=165), central (n=113), and southern palestinian territories (n=11). the prevalent flea species were: ctenocephalides felis (n=119/289; 41.2%), ctenocephalides canis (n=159/289; 55%), and xenopsylla sp. ...201425424254
elucidating transmission dynamics and host-parasite-vector relationships for rodent-borne bartonella spp. in madagascar.bartonella spp. are erythrocytic bacteria transmitted via arthropod vectors, which infect a broad range of vertebrate hosts, including humans. we investigated transmission dynamics and host-parasite-vector relationships for potentially zoonotic bartonella spp. in invasive rattus rattus hosts and associated arthropod ectoparasites in madagascar. we identified five distinct species of bartonella (b. elizabethae 1, b. elizabethae 2, b. phoceensis 1, b. rattimassiliensis 1, and b. tribocorum 1) infe ...201728351673
bartonella spp. in small mammals, benin.this study aimed to investigate the prevalence and genetic diversity of bartonella organisms in small mammals in cotonou, benin. we captured 163 rodents and 12 insectivores and successfully detected bartonella dna from 13 of the 175 small mammal individuals. bartonella spp., identical or closely related to bartonella elizabethae, bartonella tribocorum, and bartonella rochalimae, was detected. a potential new bartonella species, proposed as candidatus bartonella mastomydis, was found in three mas ...201626910412
the distribution and diversity of bartonella species in rodents and their ectoparasites across thailand.our study highlights the surveillance of bartonella species among rodents and their associated ectoparasites (ticks, fleas, lice, and mites) in several regions across thailand. a total of 619 rodents and 554 pooled ectoparasites (287 mite pools, 62 flea pools, 35 louse pools, and 170 tick pools) were collected from 8 provinces within 4 regions of thailand. bandicota indica (279), rattus rattus (163), and r. exulans (96) were the most prevalent species of rats collected in this study. real-time p ...201526484537
bartonella species in invasive rats and indigenous rodents from uganda.the presence of bartonellae in invasive rats (rattus rattus) and indigenous rodents (arvicanthis niloticus and cricetomys gambianus) from two districts in uganda, arua and zombo, was examined by pcr detection and culture. blood from a total of 228 r. rattus, 31 a. niloticus, and 5 c. gambianus was screened using genus-specific primers targeting the 16s-23s intergenic spacer region. furthermore, rodent blood was plated on brain heart infusion blood agar, and isolates were verified as bartonella s ...201424575846
high prevalence of rickettsia typhi and bartonella species in rats and fleas, kisangani, democratic republic of the congo.the prevalence and identity of rickettsia and bartonella in urban rat and flea populations were evaluated in kisangani, democratic republic of the congo (drc) by molecular tools. an overall prevalence of 17% bartonella species and 13% rickettsia typhi, the agent of murine typhus, was found in the cosmopolitan rat species, rattus rattus and rattus norvegicus that were infested by a majority of xenopsylla cheopis fleas. bartonella queenslandensis, bartonella elizabethae, and three bartonella genot ...201424445202
bartonella species identified in rodent and feline hosts from island and mainland western australia.bacteria of the genus bartonella have been described in multiple mammalian hosts with many species capable of causing disease in humans. cats and various species of rats have been reported to play a role as vertebrate hosts to a number of bartonella spp. this study aimed to identify bartonella spp. in western australia, dirk hartog island (dhi), and christmas island (ci) and to investigate the presence of potential arthropod vectors. feral cats were collected from ci (n = 35), dhi (n = 23) and s ...201626900749
an investigation of bartonella spp., rickettsia typhi, and seoul hantavirus in rats (rattus spp.) from an inner-city neighborhood of vancouver, canada: is pathogen presence a reflection of global and local rat population structure?urban norway and black rats (rattus norvegicus and rattus rattus) are reservoirs for variety of zoonotic pathogens. many of these pathogens, including rickettsia typhi, bartonella spp., and seoul hantavirus (seov), are thought to be endemic in rat populations worldwide; however, past field research has found these organisms to be absent in certain rat populations. rats (rattus spp.) from an inner city neighborhood of vancouver, canada, were tested for exposure to and/or infection with seov and r ...201525629777
identification of bartonella species isolated from rodents from yucatan, mexico, and isolation of bartonella vinsonii subsp. yucatanensis subsp. nov.bartonella species are highly endemic among wild rodents in many parts of the world. blood and/or blood clot cultures from 38 rodents, including 27 yucatan deer mouse (peromyscus yucatanicus), 7 gaumer's spiny pocket mouse (heteromys gaumeri), 2 black rats (rattus rattus) and 2 big-eared climbing rats (ototylomys phyllotis) captured near merida, yucatan, mexico, led to the isolation in 3-4 days of small gram-negative bacilli, which were identified as bartonella spp. based on colony morphology. d ...201627626126
discovery of a novel coronavirus, china rattus coronavirus hku24, from norway rats supports the murine origin of betacoronavirus 1 and has implications for the ancestor of betacoronavirus lineage a.we discovered a novel betacoronavirus lineage a coronavirus, china rattus coronavirus (chrcov) hku24, from norway rats in china. chrcov hku24 occupied a deep branch at the root of members of betacoronavirus 1, being distinct from murine coronavirus and human coronavirus hku1. its unique putative cleavage sites between nonstructural proteins 1 and 2 and in the spike (s) protein and low sequence identities to other lineage a betacoronaviruses (╬▓covs) in conserved replicase domains support chrcov h ...201525552712
remarkable diversity of tick or mammalian-associated borreliae in the metropolitan san francisco bay area, california.the diversity of lyme disease (ld) and relapsing fever (rf)-group spirochetes in the metropolitan san francisco bay area in northern california is poorly understood. we tested ixodes pacificus, i. spinipalpis, and small mammals for presence of borreliae in alameda county in the eastern portion of san francisco bay between 2009 and 2012. analyses of 218 borrelia burgdorferi sensu lato (bb sl) culture or dna isolates recovered from host-seeking i. pacificus ticks revealed that the human pathogen b ...201425129859
prevalence of borrelia burgdorferi sensu lato in synanthropic rodents in two rural communities of yucatán, méxico.lyme disease is a multisystemic zoonotic disease caused by borrelia burgdorferi sensu lato. this spirochete circulates in an enzootic cycle between the primary vertebrate reservoir and its tick vectors. different species of rodents are known to be efficient natural reservoirs for b. burgdorferi s.l.201627622631
evaluating the risk of pathogen transmission from wild animals to domestic pigs in australia.wild animals contribute to endemic infection in livestock as well as the introduction, reintroduction and maintenance of pathogens. the source of introduction of endemic diseases to a piggery is often unknown and the extent of wildlife contribution to such local spread is largely unexplored. the aim of the current study was to quantitatively assess the probability of domestic pigs being exposed to different pathogens from wild animals commonly found around commercial piggeries in australia. spec ...201626711303
factors associated with the prevalence and pathology of calodium hepaticum and c. splenaecum in periurban micromammals.calodium hepaticum (syn. capillaria hepatica) and calodium splenaecum (syn. capillaria splenaecum) are nematodes that infect the liver and spleen, respectively, of mammals. while the host range, distribution, pathology and zoonotic potential of c. hepaticum are well known, very little is known about c. splenaecum. the observed prevalence of these two parasites, the factors associated with prevalence, and the lesions resulting in the different host species were studied in 408 micromammals capture ...201424879015
capillaria hepatica in wild norway rats (rattus norvegicus) from vancouver, canada.capillaria hepatica is a parasitic nematode that infects the liver of rats (rattus spp.), and occasionally other mammalian species, including humans. despite its broad geographic distribution and host range, the ecology of this parasite remains poorly understood. we characterized the ecology of c. hepatica in urban norway rats (rattus norvegicus) in vancouver, canada. the overall prevalence of c. hepatica among norway rats was 36% (241/671); however, there was significant variation in prevalence ...201424807174
prevalence of calodium hepaticum and cysticercus fasciolaris in urban rats and their histopathological reaction in the livers.humans can get infected with several zoonotic diseases from being in close contact with rats. this study was aimed at determining the prevalence and histopathological changes caused by calodium hepaticum and cysticercus fasciolaris in infected livers of wild caught urban rats. of the 98 urban rats (rattus rattus diardii and rattus norvegicus) autopsied, 64.3% were infected; 44.9% were infected with caladium hepatica, 39.3% were infected with cysticercus fasciolaris, and 20.4% were infected with ...201426464920
[liver capillariasis (calodium hepaticum) in rodents from ituri (drc) and dakar (senegal)].human hepatic capillariosis due to calodium hepaticum is rarely described in africa, probably because of the lack of diagnosis tools. however, it is known that the animal reservoir is made up of rodents. during a study performed on 24 black rats (rattus rattus) trapped in rethy (congodr) and 20 gambian pouched rats (cricetomys gambianus) in dakar (senegal), macroscopic and histological hepatic lesions of capillariosis were found in 8 of these rodents (3 in rethy and 5 in dakar). these results le ...201424363019
calodium hepaticum (nematoda: capillariidae) in synanthropic rodents (rattus norvegicus and rattus rattus) in eastern amazonia.calodium hepaticum (syn. capillaria hepatica) is a trichurid nematode that parasitizes the hepatic parenchyma of rodents and other mammals. infections in humans are rare, although they have been reported worldwide. a number of factors contribute to the distribution of this zoonosis, particularly the presence of dense populations of rodents associated with relatively poor urban environments, such as those found in parts of the northern brazilian city of belém in the eastern amazon basin. this stu ...201323856730
capillaria hepatica infection in black rats (rattus rattus) on diego garcia, british indian ocean territory.rats (rattus spp.) are among the most damaging invasive species worldwide. the accidental introduction of rats has caused significant detriment to native flora and fauna, crops, structures, and human livelihoods. rats are vectors of disease and carriers of various zoonotic parasites. capillaria hepatica (syn. callodium hepaticum) is a parasitic nematode found primarily in rodents but is known to infect over 140 mammal species, including human beings and several species of domestic animals. in th ...201525691507
prevalence of gastrointestinal helminth infections in rodents of tarai region of uttarakhand.the present work was aimed to investigate helminth biodiversity among rodents in order to evaluate the threat for helminth transmission to humans since they act as a potential source of parasitic zoonoses. in this study, faeces of 43 black rats (rattus rattus) and 35 house mice (mus musculus) were collected from various habitats viz. domestic places and agricultural fields of different parts of tarai region of uttarakhand. these faecal samples were examined for the presence of parasitic eggs, ad ...201324431566
a survey on helminthic infection in mice (mus musculus) and rats (rattus norvegicus and rattus rattus) in kermanshah, iran.parasitic infections of rodents can compromise scientific research as well as the health of the animals and humans. based on previous studies, infection rate of parasitic helminths is different in various regions of iran. the current survey was aimed to determine endoparasitic helminths infection in 138 trapped rodents of kermanshah county, iran. mice and rats were trapped using metal snares from january to october 2011 and euthanized. rodents included 110 mus musculus (79.00%), 23 rattus norveg ...201325653780
Displaying items 701 - 800 of 1210