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Epidemiological and genetic investigation of a cluster of cases of severe fever with thrombocytopenia syndrome bunyavirus.


ABSTRACT: BACKGROUND:To analyze and discuss the transmission route of a cluster of cases of severe fever with thrombocytopenia syndrome bunyavirus (SFTSV). METHOD:We performed an epidemiological investigation and a genetic analysis of patients with severe fever with thrombocytopenia syndrome (SFTS) caused by SFTSV, their close contacts and the surrounding population. RESULTS:We found that all patients had contact with the blood of the first patient. The comparison of gene sequences in the three isolated SFTSV strains showed that the strains were closely related. Six close contacts and nine individuals in the surrounding population were positive for SFTSV IgM antibody. CONCLUSION:We suspect that the cluster outbreak was transmitted via blood and that the natural reservoir host of SFTSV exists in the patients' environment.

SUBMITTER: Mao L 

PROVIDER: S-EPMC7227288 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Epidemiological and genetic investigation of a cluster of cases of severe fever with thrombocytopenia syndrome bunyavirus.

Mao Lingling L   Deng Baocheng B   Liang Yuhong Y   Liu Yun Y   Wang Zijiang Z   Zhang Jie J   Wu Wei W   Yu Lei L   Yao Wenqing W  

BMC infectious diseases 20200514 1


<h4>Background</h4>To analyze and discuss the transmission route of a cluster of cases of severe fever with thrombocytopenia syndrome bunyavirus (SFTSV).<h4>Method</h4>We performed an epidemiological investigation and a genetic analysis of patients with severe fever with thrombocytopenia syndrome (SFTS) caused by SFTSV, their close contacts and the surrounding population.<h4>Results</h4>We found that all patients had contact with the blood of the first patient. The comparison of gene sequences i  ...[more]

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