Human infections with the H7N9 influenza virus have been eliminated in China through
vaccination of poultry; however, the H7N9 virus has not yet been eradicated from poultry …

The H7N9 avian influenza virus (AIV) that emerged in China have caused five waves of
human infection. Further human cases have been successfully prevented since September …

H7N9 low pathogenic influenza viruses emerged in China in 2013 and mutated to highly
pathogenic strains in 2017, resulting in human infections and disease in chickens. To control …

No avian H7N9 outbreaks have occurred since the introduction of H7N9 inactivated vaccine
in the fall of 2017. However, H7N9 is still prevalent in poultry. To surveil the prevalence …

H6 subtype avian influenza viruses spread widely in birds and pose potential threats to
poultry and mammals, even to human beings. In this study, the evolution and pathogenicity …

The H7N9 viruses that emerged in China in 2013 were nonpathogenic in chickens but
mutated to a highly pathogenic form in early 2017 and caused severe disease outbreaks in …

Since 2014, highly pathogenic avian influenza H5N6 viruses have been responsible for
outbreaks in poultry. In this study, four H5N6 virus strains were isolated from faecal samples …

Since it first appeared in humans in China in 2013, a novel H7N9 influenza virus has caused
1,568 cases of infection, with a mortality rate of 39.2%(Yin et al., 2021). The early H7N9 virus …

The H5N8 avian influenza viruses have been widely circulating in wild birds and are
responsible for the loss of over 33 million domestic poultry in Europe, Russia, Middle East …

In early 2021, roughly 6 months after the H7N9 H7‐Re3 and H7N9 rLN79 vaccine strains
were introduced into China, we monitored a number of H7N9 subtype avian influenza …