| [cereal grain preference of rats]. | cereal grains are usually used as the main material for preparing rodenticide baits. however, the preferences for different grains varies according to species and habitats of rats, and locations. a formula accepted at one location may not be suitable in other places, where rats are accustomed to different types of food. it is therefore important to understand the feeding habits of local rat species before implementing a control program. seven kinds of grains, including hulled rice, corn, barley, ... | 1990 | 2402029 |
| unusual ultrastructural features in the superficial pineal gland of the yellow-bellied country rat (rattus losea swinhoe). | the ultrastructure of the superficial pineal gland of the yellow-bellied country rat (rattus losea swinhoe), living under natural climatic conditions at the margin of the tropical region, was studied with special reference to the seasonal changes. in the rainy season with average monthly rainfall of 400 mm (light phase of 13.5 h, and temperature of 28 degrees c) the gland was characterized by the presence of frequent large vacuoles containing flocculent material (lvfs), large condensed inclusion ... | 1989 | 2549234 |
| morphometric studies on the testes in the yellow-bellied country-rat (rattus losea swinhoe) with particular reference to the seasonal changes. | | 1985 | 3871047 |
| ultrastructural and cytochemical studies of monoaminergic nerve endings in the pineal gland of the yellow-bellied country-rat (rattus losea swinhoe). | | 1985 | 3871051 |
| synaptic junctions between the adrenergic axon varicosity and the pinealocyte in the rat. | intercellular relationships of sympathetic nerve fibers and cells in pineal glands of long-evans rats and yellow-bellied country rats (rattus losea swinhoe) were studied with conventional electron microscopy. typical synapses were found between adrenergic axon varicosities and pinealocytes. the synaptic cleft was 20-30 nm thick and contained granular or filamentous material of moderate electron density. some small granulated vesicles attached to, or fused with, the presynaptic axolemma, a featur ... | 1984 | 6545822 |
| seroepidemiology of hantaan virus infection in taiwan. | in order to investigate the infection rate of hantaan virus in taiwan, a total of 6,536 human serum samples were collected from residents, selected by stratified random sampling, from 19 townships covering four different ethnic groups: aborigines, fukien taiwanese, hakka taiwanese, and mainland chinese. serum samples were screened for hantaan virus antibodies by indirect immunofluorescence. the prototype hantaan virus (76/118)-infected vero e6 cells were used as the viral antigen for the antibod ... | 1996 | 8950687 |
| a new species of leptotrombidium (acari:trombiculidae) collected in active rice fields in northern thailand. | leptotrombidium (leptotrombidium) chiangraiensis tanskul & linthicum is described and illustrated as new from specimens collected from the rodents rattus rattus (l., 1758), rattus argentiventer (robinson & kloss, 1916), rattus losea (swinhoe, 1870), and bandicota indica (bechstein, 1800) in chiangrai province northern thailand. the new species was collected in active rice fields and adjacent fruit plantation areas. the etiological agent of scrub typhus, orientia (formerly rickettsia) tsutsugamus ... | 1997 | 9151504 |
| lyme disease in taiwan: first human patient with characteristic erythema chronicum migrans skin lesion. | we report herein the first laboratory-diagnosed case of lyme disease in a human in taiwan. a 45-year-old taiwanese man living in taipei, in northern taiwan, had an expanding skin lesion (measuring 23 by 15 cm) on his abdomen for 2 to 3 weeks and recurrent attacks of pain and swelling of the knee joint. serologic tests indicated a significantly elevated titer of antibody to borrelia burgdorferi. after appropriate antibiotic treatment for 3 weeks, the skin lesion was cured and the joint swelling w ... | 1998 | 9508317 |
| a new ecology for scrub typhus associated with a focus of antibiotic resistance in rice farmers in thailand. | following the documentation of chloramphenicol-resistant and doxycycline-resistant strains of orientia tsutsugamushi (hyashi) in northern thailand, we conducted ecological and epidemiological studies near the houses of patients hospitalized with antibiotic-resistant infections. new associations between chiggers, rodents, and o. tsutsugamushi in active rice agriculture areas, an ecological habitat not described previously, are reported. rattus rattus (l.) was the most common species (representing ... | 1998 | 9701943 |
| lyme disease in taiwan: primary isolation of borrelia burgdorferi-like spirochetes from rodents in the taiwan area. | to investigate the prevalence of lyme disease infection in taiwan, we conducted a zoonotic survey for spirochetal infection in the small mammals. ear tissues of trapped rodents collected from various localities in taiwan were incubated into bsk-h culture medium and examined for the evidence of spirochetal infection by dark-field microscopy. spirochetes cultured from six species of wild and peridomestic rodents and seven isolates, designated twkm 1-7, were purified by serial dilution and membrane ... | 1998 | 9840582 |
| redescription of leptotrombidium (leptotrombidium) imphalum (acari: trombiculidae), with observations on bionomics and medical importance in northern thailand. | leptotrombidium (leptotrombidium) imphalum vercammen-grandjean & langston is redescribed and illustrated. specimens were collected from the rodents rattus rattus, rattus losea, and bandicota indica in chiangrai province, northern thailand. the species was found on hosts collected on dikes at the margins of rice fields and in adjacent fruit plantations and along irrigation canals, especially in areas covered with the grasses imperata cylindrica (lalang grass) and saccharum arudinaceum. the etiolo ... | 1999 | 10071498 |
| characterization and identification of borrelia isolates as borrelia valaisiana in taiwan and kinmen islands. | eleven pure cultures of borrelia from 3 species of wild rodents (apodemus agrarius, mus formosanus, rattus losea) captured in taichung, located in the center of taiwan island, and on kinmen island were characterized. five isolates showed restriction fragment length polymorphism (rflp) patterns of 5s-23s rrna gene intergenic spacer sequences identical to those of strains 5mt and 10mt, identified as borrelia valaisiana, which were isolated in the southern tip of south korea. although the remaining ... | 2000 | 11220673 |
| [studies on three types of natural foci of tsutsugamushi disease in eastern part of china]. | in order to identify the types of natural foci of tsutsugamushi disease to provide basis for prevention, a series of studies were carried out in fujian, zhejiang and jiangsu provinces. | 2000 | 11860755 |
| development of a recombinant protein-based enzyme-linked immunosorbent assay and its applications in field surveillance of rodent mice for presence of immunoglobulin g against orientia tsutsugamushi. | a recombinant protein containing the immunodominant conserved epitope region of the 56-kda outer membrane protein of the karp strain of orientia tsutsugamushi was purified to near homogeneity using recombinant dna techniques. the purified protein was used to immunize rabbits and produced an antibody that could recognize different strains of o. tsutsugamushi, as demonstrated both by western blotting and immunofluorescence assay. an enzyme-linked immunosorbent assay (elisa) based on this recombina ... | 2003 | 12738648 |
| [surveillance on severe acute respiratory syndrome associated coronavirus in animals at a live animal market of guangzhou in 2004]. | to study the prevalence of severe acute respiratory syndrome coronavirus (sars-cov) like virus in animals at a live animal market of guanzhou in 2004 before and after culling of wild animal action taken by the local authority, in order to predict the re-emerging of sars from animal originals in this region. | 2005 | 15921605 |
| seaport as a source of hantavirus: a study on isolated isles. | since small mammals from seaports have relative higher seroprevalences of hantavirus, this seroepidemiologic study was conducted on the isles in kinmen and lienchiang counties along the coast of southern mainland china to determine whether seaport may play the role as a source of hantavirus. among six species of small mammals trapped in kinmen county, only male mus musculus (6.7%) and rattus losea (5.3%) were found to be positive. in lienchiang county, five species of small mammals were trapped ... | 2007 | 17365077 |
| presence of pathogenic borrelia burgdorferi sensu lato in ticks and rodents in zhejiang, south-east china. | a molecular epidemiological survey was conducted to investigate the presence of pathogenic borrelia burgdorferi sensu lato (s.l.) species in the forest areas of zhejiang province, south-east china. a total of 182 ticks of 6 species and 200 rodents of 8 species were collected and individually examined for the presence of b. burgdorferi s.l. dna by nested pcr targeting the 5s-23s rrna intergenic spacer. forty-one ticks of four species, haemaphysalis concinna, haemaphysalis longicornis, rhipicephal ... | 2008 | 18628499 |
| isolation and identification of a novel spotted fever group rickettsia, strain ig-1, from ixodes granulatus ticks collected on orchid island (lanyu), taiwan. | a novel species of spotted fever group (sfg) rickettsia, rickettsia spp. ig-1, was identified and isolated from adult ixodes granulatus ticks collected from orchid island (lanyu), an islet located in southeastern taiwan. serum samples collected from the rodent host rattus losea and sfg-positive human serum reacted with ig-1 using an immunofluorescence assay (ifa). pairwise nucleotide sequence analysis of 16s rrna (rrs), glta, ompa, ompb, and sca4 shows that ig-1 belongs to sfg rickettsiae and ha ... | 2008 | 18689633 |
| epidemiology of bartonella infection in rodents and shrews in taiwan. | during the period of august 2002 and november 2004, an epidemiological investigation for bartonella infection was conducted in small mammals in taiwan. using whole blood culture on chocolate agar plates, bartonella species were successfully isolated from 41.3% of the 310 animals tested. the isolation rate of bartonella species varied among different animal species, including 52.7% of the 169 rattus norvegicus, 28.6% of the 126 sucus murinus, 10% of the 10 rattus rattus and 66.7% of the three rat ... | 2010 | 19538457 |
| detection of bartonella species in small mammals from zhejiang province, china. | to estimate the prevalence of bartonella in small mammals of different species, during different seasons, and at different study sites, and to provide baseline data for the risk assessment of human bartonella infection, we captured small mammals using snap traps in zhejiang province, china. bartonella species were detected in small-mammal samples by polymerase chain reaction and positive amplicons were sequenced. bartonella dna was detected in 47% (90/192) of apodemus agrarius, 31% (14/45) of ra ... | 2010 | 20090031 |
| prevalence of borrelia burgdorferi sensu lato in rodents from gansu, northwestern china. | lyme disease is a multi-organ infection disease caused by borrelia burgdorferi sensu lato. lyme disease was first documented in north-east china in 1986. since then more than 20 provinces in china were confirmed the existence of nature foci of lyme disease. in the present study, a molecular epidemiological survey was conducted to investigate the presence of borrelia burgdorferi sensu lato in rodents from gansu province for the first time. | 2010 | 20509909 |
| variation within and among host species in engorgement of larval trombiculid mites. | we recovered larval trombiculid mites (i.e. chiggers), vectors of scrub typhus, from small mammal hosts in taiwan, and compared the relative degree of engorgement (rde) of the dominant chigger (leptotrombidium imphalum) from different hosts. naturally occurring chiggers recovered from rattus losea and bandicota indica were 1·4x and 1·3x as engorged as those from apodemus agrarius. within each host species, rde was negatively related to chigger loads, but was mostly unrelated to gender or to body ... | 2010 | 20946695 |
| 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 ... | 2010 | 21329306 |
| notocotylus loeiensis n. sp. (trematoda: notocotylidae) from rattus losea (rodentia: muridae) in thailand. | notocotylus loeiensis n. sp. (trematoda: notocotylidae) is described from the cecum of the lesser rice field rat (rattus losea), from loei province in thailand with a prevalence of 9.1% (eight of 88 rats infected). the new species differs from previously described notocotylus species mainly by the extreme prebifurcal position of the genital pore and the number of ventral papillae. this is the first description at the species level of notocotylus from mammals in southeast asia. | 2011 | 21395203 |
| prevalence and molecular identification of borrelia spirochetes in ixodes granulatus ticks collected from rattus losea on kinmen island of taiwan. | ixodes granulatus is widely distributed in various countries of southeast asia and taiwan. although this tick species is presumed to be the vector for the enzoonotic transmission of borrelia spirochetes in the taiwan area, the prevalence of infection and genetic diversity of borrelia spirochetes harbored by this tick species need to be further determined. | 2012 | 22882955 |
| high prevalence of rickettsia spp. infections in small mammals in taiwan. | surveillance for rickettsia spp. is urgently needed due to the recent emergence of many novel rickettsioses around the globe, but previous studies in taiwan have been limited to small areas and no investigation of infections in vertebrate hosts has ever been attempted. we surveyed rickettsial infections systematically in small-mammal hosts trapped between 2006 and 2010 throughout taiwan. fragments of ompb and glta genes in the liver, spleen, and kidney of mammals were targeted by nested polymera ... | 0 | 25629776 |
| detection of anaplasma phagocytophilum and anaplasma bovis in small wild mammals from taichung and kinmen island, taiwan. | a total of 138 animals from 7 species (apodemus agrarius, bandicota indica, crocidura suaveolens, mus caroli, mus formosanus, rattus losea, and suncus murinus) captured in taichung, located in central taiwan, and kinmen island, an island off the shore of china, were examined for the presence of anaplasma phagocytophilum. the presence of the bacteria, which causes human granulocytic anaplasmosis, was examined by nested pcr targeting the16s rdna. twelve animals (8.7%) from m. caroli and r. losea, ... | 2014 | 24647253 |
| molecular phylogeography of angiostrongylus cantonensis (nematoda: angiostrongylidae) and genetic relationships with congeners using cytochrome b gene marker. | angiostrongylus cantonensis is an important emerging zoonotic parasite causing human eosinophilic meningitis (or meningoencephalitis) in many parts of the world. to-date there is only a single study using mitochondrial cytochrome b (cytb) gene to determine its genetic structure in eight geographical localities in thailand. the present study examined the molecular phylogeography of this rat lungworm and its phylogenetic relationship with congeners using cytb gene marker. a total of 15 cytb haplot ... | 2015 | 25930187 |
| first detection and molecular identification of babesia microti in rattus losea captured from the offshore kinmen island of taiwan. | babesia microti was firstly detected and identified in brown country rats (rattus losea, swinhoe) captured from the offshore kinmen island of taiwan. the prevalence of babesia infection in 283 rodents was screened by polymerase chain reaction (pcr) assay using a piroplasma-conserved primer set (piro a/b) and the thirty-seven pcr-positive rodents were further examined by pcr using a species-specific primer set (bab 1/4) targeting the gene encoding the nuclear small-subunit ribosomal rna (18s rrna ... | 2017 | 27988311 |
| serological prevalence against japanese encephalitis virus-serocomplex flaviviruses in commensal and field rodents in south china. | japanese encephalitis caused by japanese encephalitis virus (jev) is an endemic zoonotic disease of high public health importance in the asian pacific region. the aim of this study was to investigate the presence of jev infection in commensal and field rodents in south china. | 2016 | 27828763 |
| surveillance of potential hosts and vectors of scrub typhus in taiwan. | scrub typhus is a lethal infectious disease vectored by larval trombiculid mites (i.e. chiggers) infected with orientia tsutsugamushi (ot) and recent decades have witnessed an emergence of scrub typhus in several countries. identification of chigger species and their vertebrate hosts is fundamental for the assessment of human risks to scrub typhus under environmental changes, but intensive and extensive survey of chiggers and their hosts is still lacking in taiwan. | 2015 | 26626287 |
| rats (rattus norvegicus and rattus losea) harboring seoul hantavirus in qingyuan, southern china: a survey during 2011-2013. | hemorrhagic fever with renal syndrome (hfrs) is a zoonotic disease, which threatens public health and its incidence has increased sharply up to the present time in southern china. a survey of hfrs including in both the natural hosts and humans conducted in qingyuan, southern china, during 2011-2013 revealed that one, two and seven confirmed cases of hfrs occurred in 2011, 2012 and 2013, respectively. rodent densities ranged 1.73%-12.2% and seoul hantavirus was detected by rt-pcr only in rattus n ... | 2014 | 25417507 |
| [identification of trypanosoma species in rattus flavipectus and r. losea using microscopy and pcr method]. | to identify two suspected trypanosoma species in rattus found in zhejiang province using microscopy and pcr method. | 2015 | 26672218 |
| apodemus agrarius is a potential natural host of severe fever with thrombocytopenia syndrome (sfts)-causing novel bunyavirus. | severe fever with thrombocytopenia syndrome (sfts) is a tick-borne, novel bunyavirus-caused emerging infectious disease. it becomes a threat to public health due to its high fatality rate. | 2015 | 26322483 |
| widespread rickettsia spp. infections in ticks (acari: ixodoidea) in taiwan. | ticks are second to mosquitoes as the most important disease vectors, and recent decades have witnessed the emergence of many novel tick-borne rickettsial diseases, but systematic surveys of ticks and tick-borne rickettsioses are generally lacking in asia. we collected and identified ticks from small mammal hosts between 2006 and 2010 in different parts of taiwan. rickettsia spp. infections in ticks were identified by targeting ompb and glta genes with nested polymerase chain reaction. in total, ... | 2015 | 26336223 |
| detection and phylogenetic analysis of torque teno virus (ttv) carried by murine rodents and house shrews in china. | between may 2015 and may 2017, 496 animals (473 murine rodents and 23 house shrews) were captured in six regions of china. a total of 22.8% (113/496) of throat swabs, 29.1% (142/488) of fecal samples and 23.8% (54/227) of serum samples tested positive for rodent torque teno virus 3 (rottv3). the positive rate in rattus norvegicus was higher than the rate in rattus tanezumi and rattus losea. of 23 house shrews, one throat swab and one serum sample were positive for rottv3. ten murine rodents were ... | 2018 | 29407376 |
| pcr-based screening and phylogenetic analysis of rat pegivirus (rpgv) carried by rodents in china. | rodent-borne pegiviruses were initially identified in serum samples from desert wood-rats in 2013, and subsequently in serum samples from commensal rats in 2014. however, the prevalence and phylogenetic characteristics of rodent pegiviruses in china are poorly understood. in this study, we screened serum samples collected from wild rats in southern china between 2015 and 2016 for the presence of rat pegivirus (rpgv) by pcr. among the 314 serum samples from murine rodents (rattus norvegicus, ratt ... | 2020 | 32713889 |
| invasive plants facilitated by socioeconomic change harbor vectors of scrub typhus and spotted fever. | ecological determinants of most emerging vector-borne diseases are understudied, particularly for neglected tropical disease. moreover, although socioeconomic impacts can have significant downstream effects on human risks to vector-borne diseases via a change in land cover, particularly facilitating the invasion of exotic plants, related studies remains very scarce. scrub typhus and spotted fever are neglected diseases emerging around the globe and are transmitted by chigger mites and ticks infe ... | 2020 | 31961870 |
| detection of hepatitis b virus-like nucleotide sequences in liver samples from murine rodents and asian house shrews. | in recent years, hepatitis b virus (hbv) has been detected in some species of animals. in this study, we found hbv-like nucleotide sequences in murine rodents and asian house shrews (suncus murinus) collected in china. a total of 801 animals were trapped. we found that 0.48% (3/624) of the murine rodents and 1.69% (3/177) of asian house shrews were positive for hbv-like dna. detection of hbv-like dna in brown rats (rattus norvegicus), rice-field rat (rattus losea), and asian house shrews indicat ... | 2019 | 31216240 |
| the prevalence and genomic characteristics of hepatitis e virus in murine rodents and house shrews from several regions in china. | urban rodents and house shrews are closely correlated in terms of location with humans and can transmit many pathogens to them. hepatitis e has been confirmed to be a zoonotic disease. however, the zoonotic potential of rat hev is still unclear. the aim of this study was to determine the prevalence and genomic characteristics of hepatitis e virus (hev) in rodents and house shrews. | 2018 | 30577796 |
| detection and phylogenetic analysis of porcine bocaviruses carried by murine rodents and house shrews in china. | bocaparvovirus infections of humans and both wild and domestic animals have been widely reported around the world. in this study, we detected and genetically characterized porcine bocavirus (pbov) carried by murine rodents (rattus norvegicus, rattus tanezumi, and rattus losea) and house shrews (suncus murinus) in china. between may 2015 and may 2017, 496 murine rodents and 23 house shrews were captured in four chinese provinces. nested polymerase chain reaction was used to investigate the preval ... | 2019 | 30179306 |
| molecular detection of rickettsia species and host associations of laelaps mites (acari: laelapidae) in taiwan. | various rickettsiae have recently been detected in laelaps mites (acari: laelapidae), which are common ectoparasites of rodents; however, investigations on this topic remain very scarce, particularly in asia. in the present study, shrews and rodents were trapped from 2006 to 2010 in eight lowland regions of taiwan (< 500 m in elevation) to collect associated laelaps mites, from which rickettsia-a group of emerging pathogens-were detected and identified by assaying the glta and ompb genes. a tota ... | 2020 | 32647905 |
| fleas of shrews and rodents in rural lowland taiwan. | fleas transmit a variety of pathogens to humans but are relatively understudied in comparison to mosquitoes and ticks, including in taiwan, where fleas in rural lowlands have never been systematically surveyed. in total, 700 fleas of four species were collected from 1,260 shrews and rodents at nine counties across lowland taiwan. nosopsyllus nicanus jordan (siphonaptera: ceratophyllidae) and xenopsylla cheopis rothschild (siphonaptera: pulicidae) were the most abundant flea species (79.0 and 14. ... | 2020 | 31693136 |
| bigger doesn't mean bolder: behavioral variation of four wild rodent species to novelty and predation risk following a fast-slow continuum. | understanding how wild species respond to novel situations with associated risk can provide valuable insights for inter-specific behavioral variation and associations with pace-of-life (pol). rodents, a globally distributed and diverse taxonomic group, have been the subjects of countless studies emulating risky situations. controlled laboratory experiments with a focus on wild-caught species provide the opportunity to test fine-scale behavioral responses to contexts of risk with ecological impli ... | 2020 | 32973911 |
| [investigation and genetic identification on babesia infection in rodents in some areas of fujian province]. | to explore the status of babesia infection in rodents and the genetic characteristics of babesia spp. in fujian province. | 2017 | 30134086 |
| herbivory enhances the resistance of mangrove forest to cordgrass invasion. | the biotic resistance hypothesis proposes that biotic interactions, such as competition and herbivory, resist the establishment and spread of non-native species. the relative and interactive role of competition and herbivory in resisting plant invasions, however, remains poorly understood. we investigated the interactive role of competition and herbivory (by the native rodent rattus losea) in resisting spartina alterniflora (cordgrass) invasions into mangrove forests. in southern china, although ... | 2018 | 29607492 |