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The epidemiological characteristics and the source of infection of reemerge human rabies from 2012 to 2017 in Qinghai / 中华疾病控制杂志
Chinese Journal of Disease Control & Prevention ; (12): 690-693,699, 2019.
Article in Chinese | WPRIM | ID: wpr-779397
ABSTRACT
Objective To understand the epidemic situation and the source of infection of the reemerge human rabies in Qinghai. Methods We collected the data on human rabies and the data on the cases of multi- victims bitten by the identical dog, and also the laboratory data of the nucleoprotein ( N) gene of rabies virus from the samples which were detected by reverse transcription-polymerase chain reaction (RT-PCR) and direct immunofluorescence assay (DFA) from 2012 to 2017, to describe the epidemiological characteristics of human rabies and the prevalence of rabies virus in host animals, and to explore the source of infection of reemerge human rabies. Results A total of 7 human cases were reported in 2012-2017 in Qinghai province, among which 1 was bitted by wolf, 2 were bitted by stray dogs, 3 were bitted by domestic dogs which injured by stray dogs or wolfs. A total of 892 canine brain tissue samples were collected, from which 46 positive samples were detected with the positive rate of 5.16% (95% CI:3.70%-6.61%). The positive samples were collected from the nomadic region, which were consistent had the location of the human rabies. The samples collected from the cases of multi-victims bitten by the identical dog/animal had the positive rate of 73.08%, and 4 out of 7 human rabies were exposed to the cases of multi-victims bitten by the identical dog/animal. Genetic sequencing of the rabies virus detected from canine brain tissue samples were belong to China IV lineage, which was closely related to the Arctic clade. Conclusions The reemerging rabies happened in nomadic region of Qinghai province could be a consequence of spillover from wildlife especially from wolfs. The better surveillance system covering the human, livestock and wildlife should be set up to mitigate the rabies virus spread from the wildlife.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Disease Control & Prevention Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Disease Control & Prevention Year: 2019 Type: Article