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Molecular evidence for potential transovarial transmission of Dabieshan tick virus in Haemaphysalis longicornis from Shandong Province, China

Wang, Anan ; Tang, Yunfeng ; Pang, Zheng ; Gong, Yaxuan ; Wu, Jintao ; Qi, Jun ; Niu, Guoyu Kemenesi, Gábor

PloS one, 2023-12, Vol.18 (12), p.e0296213-e0296213 [Periódico revisado por pares]

United States: Public Library of Science

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  • Título:
    Molecular evidence for potential transovarial transmission of Dabieshan tick virus in Haemaphysalis longicornis from Shandong Province, China
  • Autor: Wang, Anan ; Tang, Yunfeng ; Pang, Zheng ; Gong, Yaxuan ; Wu, Jintao ; Qi, Jun ; Niu, Guoyu
  • Kemenesi, Gábor
  • Assuntos: Analysis ; Animals ; China - epidemiology ; Diagnosis ; Disease susceptibility ; Disease transmission ; Distribution ; Epidemiology ; Evaluation ; Female ; Haemaphysalis longicornis ; Ixodidae ; Molecular dynamics ; Phylogeny ; RNA ; RNA, Viral - genetics ; Sheep ; Tick-borne diseases ; Ticks
  • É parte de: PloS one, 2023-12, Vol.18 (12), p.e0296213-e0296213
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Dabieshan tick virus (DBTV) is a newly identified arbovirus, first detected in Haemaphysalis longicornis collected from Hubei Province in 2015. It has been confirmed that DBTV is widely distributed in Shandong Province, China. However, its entomological and epidemiological features remain to be further explored, particularly the feasibility of transovarial transmission. Our research tries to explain the possibility of transovarial transmission of DBTV from engorged female ticks to their offspring. All engorged female adult ticks were sampled from domestic sheep and allowed to lay eggs and hatch in appropriate laboratory conditions. All engorged ticks, larvae and unhatched eggs were classified into pools for nucleic acid extraction and DBTV RNA detection. According to the results of qRT-PCR, the positive rate of DBTV was 6.25% (8/128) in engorged female ticks, 3.57% (1/28) in eggs and 5% (3/60) in larvae pools, respectively. Phylogenetic analysis indicated that DBTV isolates from larvae were similar to those from maternal ticks with more than 99.5% homology, and DBTV was relatively conservative in evolution. Our findings are the first to provide molecular evidence of potential transovarial transmission of DBTV among H. longicornis. Nonetheless, the transovarial transmission of DBTV in frequency and proportion occurring in nature deserves further investigation.
  • Editor: United States: Public Library of Science
  • Idioma: Inglês

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