Potential for Person-to-Person Transmission of Henipaviruses: A Systematic Review of the Literature
JOURNAL OF INFECTIOUS DISEASES(2024)
摘要
Nipah virus Bangladesh (NiVB) is a bat-borne zoonosis transmitted between people through the respiratory route. The risk posed by related henipaviruses, including Hendra virus (HeV) and Nipah virus Malaysia (NiVM), is less clear. We conducted a broad search of the literature encompassing both human infections and animal models to synthesize evidence about potential for person-to-person spread. More than 600 human infections have been reported in the literature, but information on viral shedding was only available for 40 case-patients. There is substantial evidence demonstrating person-to-person transmission of NiVB, and some evidence for NiVM. Less direct evidence is available about the risk for person-to-person transmission of HeV, but animals infected with HeV shed more virus in the respiratory tract than those infected with NiVM, suggesting potential for transmission. As the group of known henipaviruses continues to grow, shared protocols for conducting and reporting from human investigations and animal experiments are urgently needed. Our systematic review of epidemiologic and animal laboratory studies highlights that, while the Bangladesh strain of Nipah virus is consistently transmitted between people, it is plausible that the Malaysian strain of Nipah virus and Hendra virus have similar transmission potential.
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关键词
Henipavirus,Zoonosis,Person-to-person transmission,Systematic review
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