preliminary study on potential circulation of arenaviruses in the rodent population of nakhon pathom province, thailand and their medical importance in an evoluting environment. | preliminary serological investigations were prefered to detect evidence of arenavirus infection in rodents. the study examined virus antibody in 367 rodents trapped in 6 different geographical areas of nakhon pathom province, thailand from february-march, 1998. the overall seroprevalence among rodents was 13.3%, mostly in bandicota savilei (35.7%) and rattus norvegicus (31.5%). between ecology, behavior and sex of the rodents, seroprevalence was not significantly different (p>0.05), however the ... | 2000 | 11023066 |
perspectives on applied spatial analysis to animal health: a case of rodents in thailand. | geographic information systems (gis) and remote sensing have been increasingly used in ecology and epidemiology, providing a spatial approach for animal health issues. recent development of earth environmental satellites--i.e., their growing number, improving sensor resolutions and capabilities--has offered new opportunities to delineate possible habitats and understand animals and associated parasites in their environment, by identifying the nature and structure of land use, hydrological networ ... | 2006 | 17135491 |
diversity of gastrointestinal helminths among murid rodents from northern and northeastern thailand. | the presence of gastrointestinal helminths (gi helminths) was investigated among 725 murid rodents, trapped in various habitats of nan, loei and buri ram provinces, thailand. the study revealed 17 species of rodents infected with 21 species or taxonomic groups of parasites (3 trematodes, 3 cestodes, 14 nematodes and 1 acanthocephalan). the overall prevalence of infection was 57.7% (418/725). of the gastrointestinal (gi) helminths, the dominant parasitic group was members of the family trichostro ... | 2012 | 23082550 |
prevalence of antibodies to leptospira serovars in rodents and shrews trapped in low and high endemic areas in thailand. | to investigate the prevalence of antibodies to leptospira serovars in rodents and shrews trapped in urban and rural areas in low and high endemic areas in thailand. | 2003 | 12678151 |
novel organization of the spermatozoon in two species of murid rodents from southern asia. | the morphology and structural organization of unusual spermatozoa from two species of bandicoot rats (bandicota spp) from southern asia were studied with the light and transmission electron microscope. unlike those described for nearly all other eutherian species the heads of bandicota savilei and b. indica spermatozoa were bulbous or globular in shape and had no narrow uniformly defined apex nor a clearly delineated perforatorium. the nucleus, which had one or more prominent vacuoles, was cappe ... | 1993 | 8283432 |
pathology of rickettsia tsutsugamushi infection in bandicota savilei, a natural host in thailand. | following rodent surveys in a rice-growing area of central thailand where we found bandicota savilei, b. indica, and rattus rattus infected with rickettsia tsutsugamushi, we performed a study of pathogenesis of r. tsutsugamushi in laboratory-reared b. savilei. eight animals were injected with saline and 19 animals were injected with 4.0 x 10(6) mouse 50% lethal dose units of a strain of r. tsutsugamushi isolated from a human in central thailand. animals were evaluated at intervals for igg and ig ... | 1994 | 7943567 |
mekong schistosomiasis. 4. a parasitological survey of wild rodents, domestic pigs and cattle on khong island, laos. | no evidence of infection with the mekong schistosoma was found in 12 rattus exulans, 81 r. r. molliculus, and 10 bandicota savilei caught in the vicinity of and downstream from the schistosomiasis transmission focus on khong island, south laos, and examined by dissection and portal perfusion. likewise, no eggs of the mekong schistosoma were detected in faeces of 15 domestic pigs or 43 domestic cattle examined on khong island both by merthiolate-iodine-formalin concentration and by the hatching t ... | 1975 | 1166350 |
infection of rodents by orientia tsutsugamushi, the agent of scrub typhus in relation to land use in thailand. | the relationship between land use structures and occurrence of scrub typhus agent, orientia tsutsugamushi infection in small wild mammals was conducted in three provinces of thailand: buriram, loei, and nan. orientia tsutsugamushi detection was performed using 16s ribosomal dna (rdna) amplicon sequencing approach using miseq illumina platform. in total, 387 animals (rodents and shrews) were examined for the bacterium infection. the 16s rdna sequences of the bacterium were found in nine animals f ... | 2017 | 30270910 |
[(acari: trombiculidae) (the infestation of small mammals in south-eastern vietnam with harvest mites (acari: trombiculidae))]. | this investigation was conducted in three provinces of southern vietnam in september-october 2011. a total of 257 small mammals of 11 species were caught; among them 120 rodents were infected with harvest mites of 8 species (trom- biculidac). about 4000 mites of nearly 1200 identified species were collected from the small mammals. 17 species of harvest mites were identified. walchia lupella, leptotrombidium deliense, walchia kritochaeta, and walchia micropelta predominated in the collections. mo ... | 2017 | 30721614 |
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 |
karyotypic evolution of hapalomys inferred from chromosome painting: a detailed characterization contributing new insights into the ancestral murinae karyotype. | we report on the construction of a comparative chromosome map between the emblematic laboratory rat, rattus norvegicus (rno), and delacour's marmoset rat, hapalomys delacouri (hde), based on cross-species fluorescence in situ hybridization with r. norvegicus painting probes. sixteen r. norvegicus chromosomes (rno 3-6, 8, 10-15, 17-20, and x) were retained in their entirety (as a conserved block or as a single chromosome) in the h. delacouri genome. the remaining 5 r. norvegicus chromosomes (rno ... | 2012 | 22222239 |
chromosomal evolution in rattini (muridae, rodentia). | the rattini (muridae, murinae) includes the biologically important model species rattus norvegicus (rno) and represents a group of rodents that are of clinical, agricultural and epidemiological importance. we present a comparative molecular cytogenetic investigation of ten rattini species representative of the genera maxomys, leopoldamys, niviventer, berylmys, bandicota and rattus using chromosome banding, cross-species painting (zoo-fluorescent in situ hybridization or fish) and bac-fish mappin ... | 2011 | 21850459 |
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. | 2011 | 21914534 |
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 |
vaginal cytology of the lesser bandicoot rat (bandicota savilei). | the lesser bandicoot rat (bandicota savilei) is a wild field rat commonly found in thailand. vaginal smears were obtained from five colony-born animals twice daily for 28 days and stained with giemsa stain. the external appearance of the vulva and appearance of the tip of vaginal swabs were recorded. all cells, including nucleated or keratinized epithelial cells and leukocytes, were quantified by percentage. no changes of the external genitalia were observed. the gross appearance of the vaginal ... | 1999 | 12086458 |
zoonotic helminthiases in rodents (bandicota indica, bandicota savilei, and leopoldamys edwardsi) from vientiane capital, lao pdr. | zoonotic helminths of three rodent species, bandicota indiaca, bandicota savilei, and leopoldamys edwardsi, were investigated in vientiane capital, lao pdr. a total of 310 rodents were infected with 11 species of helminth parasites. there were 168 (54.2%) of 310 rodents infected with zoonotic helminths. from our results, there are six recorded zoonotic helminth species, and the highest prevalence was exhibited by raillietina sp. (30.7%), followed by hymenolepis diminuta (17.7%), hymenolepis nana ... | 2020 | 32959774 |