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sfts virus in ticks in an endemic area of china.in total, 3,145 ticks of the species haemaphysalis longicornis (3,048; 96.9%), r. microplus (82; 2.6%), h. campanulata (9; 0.3%), and dermacentor sinicus (5; 0.2%) were collected from animals and vegetation at yantai in shandong province. both adult and immature ticks were obtained, and all ticks collected from vegetation were unfed. eggs were obtained from 22 blood-fed female ticks through maintenance at room temperature after collection. severe fever with thrombocytopenia syndrome virus (sftsv ...201525711611
prevalence of severe fever with thrombocytopenia syndrome virus in haemaphysalis longicornis ticks in south korea.haemaphysalis longicornis a vector that harbors severe fever with thrombocytopenia syndrome virus (sftsv) is a major species of tick in south korea. to investigate the existence and prevalence of sftsv in korea, we collected ticks from nine provinces in south korea for detecting sftsv. in all, we collected 13,053 ticks, and h. longicornis (90.8%, 11,856/13,053) was the most abundant among them. the minimum infection rate (mir) of sftsv in h. longicornis was 0.46% (55 pools). sftsv was detected i ...201425164614
detection of severe fever with thrombocytopenia syndrome virus from wild animals and ixodidae ticks in the republic of korea.severe fever with thrombocytopenia syndrome (sfts) is caused by sfts virus (sftsv), a novel bunyavirus reported to be endemic to central-northeastern china, southern japan, and the republic of korea (rok). to investigate sftsv infections, we collected serum samples and ticks from wild animals. using serum samples and ticks, sftsv-specific genes were amplified by one-step rt-pcr and nested pcr and sequenced. indirect immunofluorescence assay (ifa) was performed to analyze virus-specific antibody ...201627043361
current status of severe fever with thrombocytopenia syndrome in china.severe fever with thrombocytopenia syndrome (sfts) is an emerging infectious disease caused by sfts virus (sftsv). sftsv is associated with a high mortality rate and has been reported in china, south korea and japan. sftsv undergoes rapid changes owing to evolution, gene mutations, and reassortment between different strains of sftsv. in this review, we summarize the recent cases and general properties of sfts, focusing on the epidemiology, genetic diversity, clinical features, and diagnostics of ...201728251515
family cluster analysis of severe fever with thrombocytopenia syndrome virus infection in korea.severe fever with thrombocytopenia syndrome (sfts) is tick-borne viral disease that was first suspected in china in 2009. the causative virus (sftsv) was isolated in 2009 and reported in 2011, and sftsv expanded its geographic distribution in 2012-2013, from china to south korea and japan. most sftsv infections occur through haemaphysalis longicornis however, sftsv infection can also occur between family members, and nosocomial transmission of sftsv is also possible through close contact with a ...201627928083
haemaphysalis longicornis ticks as reservoir and vector of severe fever with thrombocytopenia syndrome virus in china.severe fever with thrombocytopenia syndrome (sfts) is an emerging hemorrhagic fever in east asia caused by sfts virus (sftsv), a newly discovered phlebovirus. the haemaphysalis longicornis tick has been suspected to be the vector of sftsv. to determine whether sftsv can be transmitted among ticks, from ticks to animals, and from animals to ticks, we conducted transmission studies between developmental stages of h. longicornis ticks and between ticks and mice. using reverse transcription pcr, we ...026402039
phylogenetic analysis of severe fever with thrombocytopenia syndrome virus in south korea and migratory bird routes between china, south korea, and japan.severe fever with thrombocytopenia syndrome (sfts) is a tick-borne viral disease. the sfts virus (sftsv) has been detected in the haemaphysalis longicornis, which acts as a transmission host between animals and humans. sftsv was first confirmed in china in 2009 and has also been circulating in japan and south korea. however, it is not known if a genetic connection exists between the viruses in these regions and, if so, how sftsv is transmitted across china, south korea, and japan. we therefore h ...201526033016
no detection of severe fever with thrombocytopenia syndrome virus from ixodid ticks collected in seoul.larvae, nymphs, and adult stages of 3 species of ixodid ticks were collected by tick drag methods in seoul during june-october 2013, and their infection status with severe fever with thrombocytopenia syndrome (sfts) virus was examined using rt-pcr. during the period, 732 haemaphysalis longicornis, 62 haemaphysalis flava, and 2 ixodes nipponensis specimens were collected. among the specimens of h. longicornis, the number of female adults, male adults, nymphs, and larvae were 53, 11, 240, and 446, ...201424850970
severe fever with thrombocytopenia syndrome virus in ticks collected from humans, south korea, 2013.we investigated the infection rate for severe fever with thrombocytopenia syndrome virus (sftsv) among ticks collected from humans during may-october 2013 in south korea. haemaphysalis longicornis ticks have been considered the sftsv vector. however, we detected the virus in h. longicornis, amblyomma testudinarium, and ixodes nipponensis ticks, indicating additional potential sftsv vectors.025061851
first isolation of severe fever with thrombocytopenia syndrome virus from haemaphysalis longicornis ticks collected in severe fever with thrombocytopenia syndrome outbreak areas in the republic of korea.severe fever with thrombocytopenia syndrome (sfts) is an emerging tick-borne infectious disease that is endemic to china, japan, and the republic of korea (rok). in this study, 8313 ticks collected from sfts outbreak areas in the rok in 2013 were used to detect the sfts virus (sftsv). a single sftsv was isolated in cell culture from one pool of haemaphysalis longicornis ticks collected from samcheok-si, gangwon province, in the rok. phylogenetic analysis showed that the sftsv isolate was cluster ...201626745758
risk assessment of human infection with a novel bunyavirus in china.to assess the public health risk of human infection from a novel bunyavirus - severe fever with thrombocytopenia syndrome virus (sftsv) - in china.201223908943
experimental and natural infections of goats with severe fever with thrombocytopenia syndrome virus: evidence for ticks as viral vector.severe fever with thrombocytopenia syndrome virus (sftsv), the causative agent for the fatal life-threatening infectious disease, severe fever with thrombocytopenia syndrome (sfts), was first identified in the central and eastern regions of china. although the viral rna was detected in free-living and parasitic ticks, the vector for sftsv remains unsettled.201526485390
first detection of severe fever with thrombocytopenia syndrome virus in the tick species haemaphysalis concinna in shandong province, china.the aim of this study was to detect severe fever with thrombocytopenia syndrome virus (sftsv) infection using polymerase chain reaction (pcr) amplification in adult haemaphysalis concinna ticks. a total of 72 adult h. concinna ticks were obtained from 35 goats, three adult h. concinna ticks (4.17 %) collected from two goats were found to be infected with sftsv via pcr assay. sequence analysis showed that the partial segment m glycoprotein gene of sftsv was about 500 bases long by polymerase chai ...201526350381
the first molecular evidence of severe fever with thrombocytopenia syndrome virus in ticks in jilin, northeastern china.severe fever with thrombocytopenia syndrome (sfts) is an emerging tick-borne zoonosis. the aim of this study was to investigate sfts virus (sftsv) infections in ticks in northeastern china. a total of 6427 ticks, including 5450 haemaphysalis longicornis, 463 dermacentor silvarum, 351 dermacentor nuttalli, and 163 ixodes persulcatus, were sampled in the liaoning, jilin, and heilongjiang provinces of northeastern china. viral megagenomic analysis of the ticks revealed 25 contigs targeting the m an ...201627460903
the emergence and cross species transmission of newly discovered tick-borne bunyavirus in china.a novel tick-borne bunyavirus, discovered in china and later in south korea and japan, is now known as huaiyangshan virus or severe fever with thrombocytopenia syndrome virus and has been identified as the causative agent of a hemorrhagic fever-like disease. of five species of ticks carrying huaiyangshan viruses, haemaphysalis longicornis was the most abundant in regions where the virus was endemic. its usual hosts (cattle, goats, dogs, rats and chickens) tested positive for huaiyangshan virus r ...201626949898
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