Prevalence of HA mutations characteristic of H5 sublineages A, BI and BII viruses in virus isolates from Egypt and Asia.

aPercent of H5N1 viruses that have mutation characteristic of sublineages A, BI and BII for each geographic region, host and year.
bSequence information from the National Center for Biotechnology Information database in addition to sequences analyzed for this study.
- denotes no sequence information available.

a. 各地理区域、宿主与年度范围内，携带A、BI、BII子谱系特征突变的H5N1病毒占比
b. 除本研究分析的序列外，来自美国国家生物技术信息中心（National Center for Biotechnology Information, NCBI）数据库的序列信息
- 代表无可用序列信息