Fourteen influenza A(H7N9) viruses were isolated from poultry or the environment in live poultry markets in Guangdong Province, China during 2014−2015. Phylogenetic analysis showed that all viruses were descended from viruses of the second wave of influenza A(H7N9) virus infections during 2013. These viruses can be divided into 2 branches.
Ahead of Print -Third Wave of Influenza A(H7N9) Virus from Poultry, Guangdong Province, China, 2014–2015 - Volume 21, Number 9—September 2015 - Emerging Infectious Disease journal - CDC
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