Variation in Influenza B Virus Epidemiology by Lineage, China

Abstract

We used national sentinel surveillance data in China for 2005–2016 to examine the lineage-specific epidemiology of influenza B. Influenza B viruses circulated every year with relatively lower activity than influenza A. B/Yamagata was more frequently detected in adults than in children.

Keywords

• Influenza B
• epidemiology
• lineage
• Yamagata
• Victoria
• China