RESUMEN

Subclinical infection of vaccinated chickens with a highly pathogenic avian influenza A(H5N2) virus was identified through routine surveillance in China. Investigation suggested that the virus has evolved into multiple genotypes. To better control transmission of the virus, we recommend a strengthened program of education, biosecurity, rapid diagnostics, surveillance, and elimination of infected poultry.

Asunto(s)

Infecciones Asintomáticas , Pollos/virología , Virus de la Influenza A/clasificación , Gripe Aviar/epidemiología , Gripe Aviar/virología , Animales , China/epidemiología , Genotipo , Glicoproteínas Hemaglutininas del Virus de la Influenza/genética , Virus de la Influenza A/genética , Virus de la Influenza A/inmunología , Filogenia , Vacunación