期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 110, 期 20, 页码 8194-8199出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1303037110
关键词
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资金
- National Institutes of Health [AI051292, AI57158]
- National Institute of Allergy and Infectious Diseases [5R01AI079231-02]
- US Agency for International Development PREDICT Grant [GHNA 0009 0001 000]
- US Department of Defense
- Emerging Pandemic Threats Program of the US Agency for International Development
- National Center for Emerging and Zoonotic Infectious Diseases
- Centers for Disease Control and Prevention (Atlanta, GA)
- Global Disease Detection Program of the Centers for Disease Control and Prevention (Atlanta, GA)
Although there are over 1,150 bat species worldwide, the diversity of viruses harbored by bats has only recently come into focus as a result of expanded wildlife surveillance. Such surveys are of importance in determining the potential for novel viruses to emerge in humans, and for optimal management of bats and their habitats. To enhance our knowledge of the viral diversity present in bats, we initially surveyed 415 sera from African and Central American bats. Unbiased high-throughput sequencing revealed the presence of a highly diverse group of bat-derived viruses related to hepaciviruses and pegiviruses within the family Flaviridae. Subsequent PCR screening of 1,258 bat specimens collected worldwide indicated the presence of these viruses also in North America and Asia. A total of 83 bat-derived viruses were identified, representing an infection rate of nearly 5%. Evolutionary analyses revealed that all known hepaciviruses and pegiviruses, including those previously documented in humans and other primates, fall within the phylogenetic diversity of the bat-derived viruses described here. The prevalence, unprecedented viral biodiversity, phylogenetic divergence, and worldwide distribution of the bat-derived viruses suggest that bats are a major and ancient natural reservoir for both hepaciviruses and pegiviruses and provide insights into the evolutionary history of hepatitis C virus and the human GB viruses.
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