Banna Virus, China | CDC EID

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Volume 16, Number 3–March 2010
Dispatch
Banna Virus, China, 1987–2007
Hong Liu, Ming-Hua Li, You-Gang Zhai, Wei-Shan Meng, Xiao-Hong Sun, Yu-Xi Cao, Shi-Hong Fu, Huan-Yu Wang, Li-Hong Xu, Qing Tang, and Guo-Dong Liang
Author affiliations: Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China

Suggested citation for this article

Abstract
Banna viruses (BAVs) have been isolated from pigs, cattle, ticks, mosquitoes, and human encephalitis patients. We isolated and analyzed 20 BAVs newly isolated in China; this finding extends the distribution of BAVs from tropical zone to north temperate climates and demonstrate regional variations in BAV phylogeny and mosquito species possibly involved in BAV transmission.
Banna virus (BAV), the prototype species of genus Seadornavirus within the family Reoviridae, has a genome composed of 12 segments of double-stranded RNA (1). BAV was initially isolated from persons with encephalitis and fever in Xishuangbanna, Yunnan Province, People's Republic of China, in 1987 (2). Since then, BAV isolates have been obtained from pigs, cattle, and ticks in China (3,4) and from mosquitoes in Indonesia, China, and Vietnam. (5–7). BAV is a BioSafety Level 3 arboviral agent that is pathogenic to humans and may well be an emerging pathogen or undiagnosed cause of human viral encephalitis in some areas (1). Our objective was to describe new BAV isolates from China and to define the geographic distribution and the phylogenetic relationships of these isolates with reference to the previously described isolates.

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Suggested Citation for this Article
Liu H, Li M-H, Zhai Y-G, Meng W-S, Sun X-H, Cao Y-X, et al. Banna virus, China, 1987–2007. Emerg Infect Dis [serial on the Internet]. 2010 Mar [date cited]. http://www.cdc.gov/EID/content/16/3/514.htm

DOI: 10.3201/eid1603.091160