| study on vector mites of tsutsugamushi disease in cheju island, korea. | because no reference on trombiculid mites (acarina: trombiculidae) in cheju island where tsutsugamushi disease is highly endemic had been available, studies on trombiculid mites in cheju island were implemented during the period of august 1991-april 1992, and the results obtained are summarized as follows: (1) the species and numbers of the field rodents collected were 143 apodemus agrarius chejuensis (92.3%), 11 crocidura lasiura (7.1%) and 1 micromys minutus (0.6%). from total 12,075 chiggers ... | 1992 | 1297424 |
| epidemiological studies on host animals of tsutsugamushi disease in korea. | epidemiological studies on host rodents of tsutsugamushi disease were carried out during the period of july-september 1990 at nine localities of central korea. among total 111 wild rodents trapped by the modified sherman live traps, 103 were apodemus agrarius (92.8%), seven were crocidura lasiura (6.3%) and one was microtus fortis (0.9%), showing 24.0% of trapping rate in winter, 11.7% in spring, 11.2% in summer and 12.0% in autumn. out of 103 a. agrarius 84 were parasitized by chiggers, showing ... | 1991 | 1954201 |
| new species of neotrombicula (acari: trombiculidae) from the southern primorye territory, russian far east. | neotrombicula kanekoi n. sp. is described from apodemus agrarius and crocidura lasiura collected in the primorye territory, russian far east. this species is close to n. subsignata but differs in having eight setae in the first posthumeral row, whereas n. subsignata has six. the new species is the sixth known member of the bisignata group in the far east. | 1995 | 7616531 |
| [studies on natural foci of tsutsugamushi disease of the autumn-winter type in jiangsu]. | before 1986, tsutsugamushi disease was known only prevalent in south to zhejiang province in our country, belonged to the summer type and leptotrombidium (l.) deliense was regarded as the main vector. in october 1986, the authors found this disease in nanjing and carried out a series of studies in 1986-1992. the results were as follows: tsutsugamushi disease was epidemic in nanjing and north of jiangsu (including: dongtai, haian, rudong, jinhu, hanjiang, jiangdu); belonged to the autumn-winter t ... | 1994 | 8082137 |
| [population density of chigger mites, the vector of tsutsugamushi disease in chollanam-do, korea]. | the geographical distribution and population density of rodents and chigger mites at six localities of chollanam-do were investigated from october to december in 1993. among total 142 field rodents collected by the modified chemla wooden traps, 131 rodents were apodemus agrarius (92.3%) and 11 were crocidura lasiura (7.7%). out of 142 field rodents, 92 were parasitized by chiggers, showing 69.0% of the infestation rate and 74.2 of the chigger index. infestation rate and chigger index of a. agrar ... | 1996 | 8820739 |
| molecular and serologic survey of orientia tsutsugamushi infection among field rodents in southern cholla province, korea. | field rodents were collected from six areas in southern cholla province, korea from october to december 1993. twenty-eight (24%) of the 119 apodemus agrarius were seropositive (> 1:10) for orientia tsutsugamushi by the passive hemagglutination assay (pha). of the seropositive cases, 11 specimens had antibody titers greater than 1:80. no seropositive specimens were found among the eight crocidura lasiura collected. on the other hand, the polymerase chain reaction (pcr) amplified about 520 basepai ... | 1998 | 9574801 |
| [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 |
| detection of bartonella species from ticks, mites and small mammals in korea. | we investigated the prevalence of bartonella infections in ticks, mites and small mammals (rodents, insectivores and weasels) collected during 2001 through 2004, from various military installations and training sites in korea, using pcr and sequence analysis of 16s rrna, 23s rrna and groel heat shock protein genes. the prevalence of bartonella spp. was 5.2% (n = 1,305 sample pools) in ticks, 19.1% (n = 21) in mesostigmatid mites and 13.7% (n = 424 individuals) in small mammals. the prevalence wi ... | 2005 | 16293997 |
| plagiorchis muris infection in apodemus agrarius from northern gyeonggi-do (province) near the demilitarized zone. | the small intestines of 6 species of rodents and 1 species of insectivore were examined seasonally for plagiorchis muris infection in 3 different localities in northern gyeonggi-do (province), near the demilitarized zone (dmz). a total of 1,496 animals, including 1,366 apodemus agrarius, 54 crocidura lasiura (insectivore), 32 mus musculus, 28 micronytus fortis, 9 eothenomys regulus, 6 micronys minutus, and 3 cricetulus triton, were live-trapped at yeoncheon-gun (n = 351), paju-shi (804) and poch ... | 2007 | 17570981 |
| apodemus agrarius as a new definitive host for neodiplostomum seoulense. | a total of 1,496 rodents and insectivores were live-trapped at yeoncheon-gun (n = 351), paju-shi (804), and pocheon-gun (343), gyeonggi-do (province), and examined for intestinal helminths, including neodiplostomum seoulense, seasonally from december 2004 to september 2005. six species of rodents, including apodemus agrarius (1,366), mus musculus (32), micronytus fortis (28), eothenomys regulus (9), micronys minutus (6), and cricetulus triton (3), and 1 species of insectivores crocidura lasiura ... | 2007 | 17570982 |
| microbial pathogens in ticks, rodents and a shrew in northern gyeonggi-do near the dmz, korea. | a total of 1,618 ticks [420 individual (adults) and pooled (larvae and nymphs) samples], 369 rodents (apodemus agrarius, rattus norvegicus, tscherskia triton, mus musculus, and myodes regulus), and 34 shrews (crocidura lasiura) that were collected in northern gyeonggi-do near the demilitarized zone (dmz) of korea during 2004-2005, were assayed by pcr for selected zoonotic pathogens. from a total of 420 individual and pooled tick dna samples, anaplasma (a.) phagocytophilum (16), a. platys (16), e ... | 2008 | 18716449 |
| ecological surveillance of small mammals at firing points 10 and 60, gyeonggi province, republic of korea, 2001-2005. | throughout korea, small mammals are hosts to a number of disease-causing agents that pose a health threat to u.s. and korean military forces while they conduct field-training exercises. a seasonal rodent-borne disease surveillance program was established at two firing points (fp), fp-10, and fp-60, and conducted over five years from 2001 through 2005 in response to hantavirus cases among u.s. soldiers. the ecology of these sites consisted primarily of tall grasses associated with semi-permanent ... | 2008 | 19263858 |
| characterization of imjin virus, a newly isolated hantavirus from the ussuri white-toothed shrew (crocidura lasiura). | until recently, the single known exception to the rodent-hantavirus association was thottapalayam virus (tpmv), a long-unclassified virus isolated from the asian house shrew (suncus murinus). robust gene amplification techniques have now uncovered several genetically distinct hantaviruses from shrews in widely separated geographic regions. here, we report the characterization of a newly identified hantavirus, designated imjin virus (mjnv), isolated from the lung tissues of ussuri white-toothed s ... | 2009 | 19357167 |
| echinostome infections in the striped-field mouse, apodemus agrarius, and the ussuri white-toothed shrew, crocidura lasiura, caught near the demilitarized zone, gyeonggi-do (province), republic of korea. | a total of 1,498 small mammals (rodents and insectivores), including apodemus agrarius (n = 1,366), crocidura lasiura (54), mus musculus (32), micronytus fortis (28), eothenomys regulus (9), micronys minutes (6), and cricetulus triton (3), were live-trapped in gyeonggi-do (province) (paju-si, pocheon-gun, and yeoncheon-gun) near the demilitarized zone (dmz) from december 2004 to september 2005. a. agrarius was found to be infected with 3 species of echinostomes (echinostoma hortense, echinostoma ... | 2009 | 19724709 |
| detection of rickettsia typhi and seasonal prevalence of fleas collected from small mammals in the republic of korea. | fleas were collected from live-captured small mammals to identify potential flea-borne pathogens, seasonal prevalence of flea species, and host preference as part of the us military rodent-borne diseases surveillance program conducted at one us military installation and 10 military training sites, northern gyeonggi province, republic of korea. during 2003-04, 948 fleas (563 females and 385 males) were recovered from 2,742 small mammals (seven rodent and one insectivore species). apodemus agrariu ... | 2010 | 20090029 |
| serological surveillance of scrub typhus, murine typhus, and leptospirosis in small mammals captured at twin bridges training area, gyeonggi province, republic of korea, 2005-2007. | soldiers from the republic of korea and the united states conduct armistice military operations at twin bridges training area (tbta) located near the demilitarized zone (dmz) and are exposed to zoonotic disease pathogens that small mammals and their potentially disease-carrying ectoparasites transmit. tbta is a 36 km2 rural training site with small villages and various forms of agriculture along its boundary. at tbta, rodents, insectivores, and their ectoparasites are commonly found in associati ... | 2010 | 20108842 |
| serosurveillance of scrub typhus in small mammals collected from military training sites near the dmz, northern gyeonggi-do, korea, and analysis of the relative abundance of chiggers from mammals examined. | comprehensive quarterly serosurveillance on scrub typhus in small mammals collected from military training sites located near the demilitarized zone (dmz), northern gyeonggi-do (province), rok was conducted to determine the potential rodent-borne and associated ectoparasite disease risks to military personnel. a total of 1,196 rodents and insectivores representing 8 species, apodemus agrarius (87.3%, n = 1,044), mus musculus (5.4%, n = 65), crocidura lasiura (3.3%, n = 40), microtus fortis (2.6% ... | 2010 | 20877503 |
| genetic diversity of imjin virus in the ussuri white-toothed shrew (crocidura lasiura) in the republic of korea, 2004-2010. | recently, imjin virus (mjnv), a genetically distinct hantavirus, was isolated from lung tissues of the ussuri white-toothed shrew (crocidura lasiura) captured near the demilitarized zone in the republic of korea. to clarify the genetic diversity of mjnv, partial m- and l-segment sequences were amplified from lung tissues of 12 of 37 (32.4%) anti-mjnv igg antibody-positive ussuri white-toothed shrews captured between 2004 and 2010. a 531-nucleotide region of the m segment (coordinates 2,255 to 2, ... | 2011 | 21303516 |
| 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 ... | 2011 | 21612536 |
| molecular evolution of azagny virus, a newfound hantavirus harbored by the west african pygmy shrew (crocidura obscurior) in cote d'ivoire. | abstract: background: tanganya virus (tgnv), the only shrew-associated hantavirus reported to date from sub-saharan africa, is harbored by the therese's shrew (crocidura theresae), and is phylogenetically distinct from thottapalayam virus (tpmv) in the asian house shrew (suncus murinus) and imjin virus (mjnv) in the ussuri white-toothed shrew (crocidura lasiura). the existence of myriad soricid-borne hantaviruses in eurasia and north america would predict the presence of additional hantaviruses ... | 2011 | 21798050 |
| Hantaan virus surveillance targeting small mammals at Dagmar North Training Area, Gyeonggi Province, Republic of Korea, 2001-2005. | In response to a hemorrhagic fever with renal syndrome case in November 2000, a seasonal rodent-borne disease surveillance program was initiated at Dagmar North Training Area (DNTA), Gyeonggi Province, Republic of Korea. From April 2001-December 2005, 1,848 small mammals were captured. Apodemus agrarius accounted for 92.5%, followed by Mus musculus (3.6%), Crocidura lasiura (2.1%), and Microtus fortis (1.1%). Three species of rodents were found to be antibody-positive (Ab+) for Hantaan virus (HT ... | 2011 | 22129409 |
| prevalence and molecular characterizations of toxoplasma gondii and babesia microti from small mammals captured in gyeonggi and gangwon provinces, republic of korea. | a survey was conducted to determine the distribution and prevalence of toxoplasma gondii and babesia microti infections in small mammals captured in gyeonggi and gangwon provinces, republic of korea (rok). the serological prevalence of t. gondii (elisa) and b. microti (ifat) was 2.3% (15/667) and 2.1% (14/667), respectively. dna extracts from small mammal heart tissues were screened by pcr for t. gondii and b. microti targeting regions of the gra5 gene and the 18s rrna and β-tubulin genes, respe ... | 2014 | 25178555 |
| detection of imjin virus and seoul virus in crocidurine shrews in shandong province, china. | recently, hantaviruses have been discovered in insectivores in europe, asia, africa, and north america. imjin virus (mjnv) was first isolated from the lung tissues of ussuri white-toothed shrew (crocidura lasiura) from south korea in 2009. we aim to detect the species and prevalence of insectivore- and rodent-borne hantaviruses in shrews and rodents. | 2017 | 28287930 |
| hantaan virus surveillance targeting small mammals at nightmare range, a high elevation military training area, gyeonggi province, republic of korea. | rodent-borne disease surveillance was conducted at nightmare range (nm-r), near the demilitarized zone in northeast gyeonggi province, republic of korea, to identify hemorrhagic fever with renal syndrome (hfrs) risks for a mountainous high-elevation (500 m) military training site. monthly surveys were conducted from january 2008-december 2009. a total of 1,720 small mammals were captured belonging to the orders rodentia [families, sciuridae (1 species) and muridae (7 species)] and soricomorpha [ ... | 2015 | 25874643 |
| intestinal nematodes from small mammals captured near the demilitarized zone, gyeonggi province, republic of korea. | a total of 1,708 small mammals (1,617 rodents and 91 soricomorphs), including apodemus agrarius (n = 1,400), microtus fortis (167), crocidura lasiura (91), mus musculus (32), myodes (= eothenomys) regulus (9), micromys minutus (6), and tscherskia (= cricetulus) triton (3), were live-trapped at us/republic of korea (rok) military training sites near the demilitarized zone (dmz) of paju, pocheon, and yeoncheon, gyeonggi province from december 2004 to december 2009. small mammals were examined for ... | 2015 | 25748722 |
| seroepidemiological survey of zoonotic diseases in small mammals with pcr detection of orientia tsutsugamushi in chiggers, gwangju, korea. | serosurveillance for zoonotic diseases in small mammals and detection of chiggers, the vector of orientia tsutsugamushi, were conducted from september 2014 to august 2015 in gwangju metropolitan area. apodemus agrarius was the most commonly collected small mammals (158; 91.8%), followed by myodes regulus (8; 4.6%), and crocidura lasiura (6; 3.5%). the highest seroprevalence of small mammals for o. tsutsugamushi (41; 26.3%) was followed by hantaviruses (24; 15.4%), rickettsia spp. (22; 14.1%), an ... | 2016 | 27417085 |
| biodiversity and evolution of imjin virus and thottapalayam virus in crocidurinae shrews in zhejiang province, china. | the recent discovery of numerous hantaviruses in insectivores has provided a new view of hantavirus biodiversity and evolution. to determine the presence and genetic diversity of imjin virus (mjnv) and thottapalayam virus (tpmv) in insectivores in zhejiang province, china, we captured and performed virus screening of 32 ussuri white-toothed shrews (crocidura lasiura) and 105 asian house shrews (suncus murinus) in different coastal regions. hantavirus genome (s, m, and l segments) sequences were ... | 2014 | 24874196 |
| genetic identification of prey species from teeth in faeces from the endangered leopard cat prionailurus bengalensis using mitochondrial cytochrome b gene sequence. | to understand the dietary ecology of the leopard cat (prionailurus bengalensis), dna analysis was performed to identify prey species using dna isolated from teeth harvested from the faeces of this feline species. from 70 dna samples, a total of 52 mitochondrial dna (mtdna) cytochrome b (cytb) gene sequences of mammals were identified. the results of a sequence identity test indicated that those sequences were derived from four rodent species (apodemus agrarius, apodemus peninsulae, eothenomys re ... | 2017 | 28093009 |
| geographical distribution and seasonal indices of chigger mites on small mammals collected on the east coast of the republic of korea. | the geographical distributions and relative population densities of scrub typhus vector mites collected from small mammals were determined for 5 locations on the east coast of the republic of korea. collection sites included goseong, gangneung, and hoengseong in gangwon province and uljin and yeongdeok in gyeongbuk province. a total of 275 small mammals including members of rodentia (rodents) and soricomorpha (shrews, such as crocidura lasiura ) belonging to 4 genera and 4 species were captured ... | 2016 | 26653927 |
| first report for the seasonal and annual prevalence of flea-borne bartonella from rodents and soricomorphs in the republic of korea. | rodents and soricomorphs are animal hosts of fleas and associated zoonotic microbial pathogens. a total of 4,889 small mammals were collected from gyeonggi and gangwon provinces, republic of korea, from 2008 through 2010, including: apodemus agrarius (4,122, 84.3%), followed by crocidura lasiura (282, 5.8%), microtus fortis (257, 5.3%), myodes regulus (77, 1.6%), micromys minutus (71, 1.5%), mus musculus (63, 1.3%), and 4 other species (17, 0.3%). a total of 1,099 fleas belonging to 10 species a ... | 2013 | 23590324 |
| monthly occurrence of vectors and reservoir rodents of scrub typhus in an endemic area of jeollanam-do, korea. | monthly surveys were conducted to investigate the occurrence of chigger mites and seroprevalence of scrub typhus among small mammals in jeollanam-do, the southwestern part of korea, from november 2006 through october 2007. fifty-eight small mammals, including 57 apodemus agrarius (98.3%) and 1 crocidura lasiura (1.7%), were captured, and a total of 4,675 chigger mites representing 4 genera and 8 species were collected from them. the chigger infestation rate among small mammals was 69.0%. the mos ... | 2012 | 23230330 |
| hantavirus surveillance and genetic diversity targeting small mammals at camp humphreys, a us military installation and new expansion site, republic of korea. | small mammal surveillance was conducted (2008-2010, 2012) at camp (cp) humphreys, a us army installation and new expansion site, republic of korea (rok), to identify hemorrhagic fever with renal syndrome health threats to us military/civilian populations during its ongoing expansion phase. small mammals were collected using sherman live capture traps and transported to korea university where they were euthanized, tissues removed, and assayed to determine hantavirus igg antibody-positive and hant ... | 2017 | 28448595 |
| molecular epidemiology of an orientia tsutsugamushi gene encoding a 56-kda type-specific antigen in chiggers, small mammals, and patients from the southwest region of korea. | a phylogenetic analysis of orientia tsutsugamushi was performed to elucidate its antigenic diversity in chiggers, small mammals, and patients. between september 2014 and december 2016, a total of 3,816 chiggers were identified within nine species of four genera in the southwest region of korea: leptotrombidium scutellare (49.9%; 1,907/3,816), leptotrombidium orientale (21.1%; 804/3,816), leptotrombidium pallidum (12.4%; 474/3,816), euchoengastia koreaensis (7.2%; 273/3,816), leptotrombidium palp ... | 2018 | 29313468 |
| lethal disease in infant and juvenile syrian hamsters experimentally infected with imjin virus, a newfound crocidurine shrew-borne hantavirus. | to gain insights into the pathogenicity of imjin virus (mjnv), a newfound hantavirus isolated from the ussuri white-toothed shrew (crocidura lasiura), groups of syrian hamsters (mesocricetus auratus) of varying ages (<1, 5, 10, 14, 21, 35 and 56 days) were inoculated by the intraperitoneal route with 1000 pfu of mjnv strains 04-55 and 05-11. mjnv-infected syrian hamsters, aged 21 days or less, exhibited reduced activity, weight loss, respiratory distress, hind-limb paralysis and seizures. death ... | 2015 | 26371066 |
| dynamic circulation and genetic exchange of a shrew-borne hantavirus, imjin virus, in the republic of korea. | hantaviruses (family bunyaviridae) are enveloped negative-sense tripartite rna viruses. the natural hosts of hantaviruses include rodents, shrews, moles, and bats. imjin virus (mjnv) is a shrew-borne hantavirus identified from the ussuri white-toothed shrews (crocidura lasiura) in the republic of korea (rok) and china. we have isolated mjnv and determined its prevalence and molecular diversity in gyeonggi province, rok. however, the distribution and phylogeography of mjnv in other regions of rok ... | 2017 | 28295052 |
| divergent ancestral lineages of newfound hantaviruses harbored by phylogenetically related crocidurine shrew species in korea. | spurred by the recent isolation of a novel hantavirus, named imjin virus (mjnv), from the ussuri white-toothed shrew (crocidura lasiura), targeted trapping was conducted for the phylogenetically related asian lesser white-toothed shrew (crocidura shantungensis). pair-wise alignment and comparison of the s, m and l segments of a newfound hantavirus, designated jeju virus (jjuv), indicated remarkably low nucleotide and amino acid sequence similarity with mjnv. phylogenetic analyses, using maximum ... | 2012 | 22230701 |
| complete mitochondrial genome of the ussuri white-toothed shrew crocidura lasiura (insectivora, soricidae). | we obtained the complete mitochondrial genome of the ussuri white-toothed shrew crocidura lasiura (insectivora, soricidae) at 17 362 base pairs (bp) containing 13 protein-coding genes, two ribosomal rnas, 22 transfer rnas, and a non-coding control region. its gene order is identical to that of other vertebrates. several repeat elements were identified in the non-coding control region (d-loop). phylogenetic tree using mt protein-coding gene sequences showed that c. lasiura was closely related to ... | 2017 | 26710936 |
| surveillance of chigger mite vectors for tsutsugamushi disease in the hwaseong area, gyeonggi-do, republic of korea, 2015. | owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. tsutsugamushi disease (scrub typhus) in the republic of korea is steadily increasing and was designated as a legal communicable disease in 1994. the disease is a mite-borne acute febrile disease most commonly contracted from october to december. in this study, we tried to de ... | 2020 | 32615743 |