Moderate influenza vaccine effectiveness against influenza A(H1N1)pdm09 virus and low effectiveness against A(H3N2) virus among older adults during 2013-2014 influenza season in Beijing, China

• Main Authors: Li Zhang (Author), Yang Pan (Author), Chunna Ma (Author), Wei Duan (Author), Ying Sun (Author), Shuangsheng Wu (Author), Man Zhang (Author), Yi Tian (Author), Yang Zheng (Author), Peng Yang (Author), Quanyi Wang (Author)
• Format: Book
• Published: Taylor & Francis Group, 2018-06-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Background: Since 2007, trivalent inactivated influenza vaccine has been provided free-of-charge to older adults aged ≥60 years in Beijing, China, but the data regarding influenza vaccine effectiveness (VE) among these people are very limited so far. We sought to estimate influenza VE against medica...