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Abstract

After no reported human cases of highly pathogenic avian influenza (HPAI) H7N9 for over a year, a case with severe disease occurred in late March 2019. Among HPAI H7N9 viral sequences, those recovered from the case and from environmental samples of a poultry slaughtering stall near their home formed a distinct clade from 2017 viral sequences. Several mutations possibly associated to antigenic drift occurred in the haemagglutinin gene, potentially warranting update of H7N9 vaccine strains.

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/content/10.2807/1560-7917.ES.2019.24.21.1900273
2019-05-23
2019-10-15
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2019.24.21.1900273
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