Possible pandemic threat from new reassortment of influenza A(H7N9) virus in Chin

Eurosurveillance
Volume 19, Issue 6, 13 February 2014
http://www.eurosurveillance.org/Public/Articles/Archives.aspx?PublicationId=11678

Rapid communications
Possible pandemic threat from new reassortment of influenza A(H7N9) virus in China
Z Meng1, R Han2, Y Hu1, Z Yuan1, S Jiang1, X Zhang1,3, J Xu 1,3

Abstract
Avian influenza A(H7N9) virus re-emerged in China in December 2013, after a decrease in the number of new cases during the preceding six months. Reassortment between influenza A(H7N9) and local H9N2 strains has spread from China’s south-east coast to other regions. Three new reassortments of A(H7N9) virus were identified by phylogenetic analysis: between A(H7N9) and Zhejiang-derived strains, Guangdong/Hong Kong-derived strains or Hunan-derived A(H9N2) strains. Our findings suggest there is a possible risk that a pandemic could develop