The avian influenza A (H7N9) virus is a zoonotic virus that is closely associated with live
poultry markets. It has caused infections in humans in China since 2013. Five waves of the …

In the midst of the ongoing COVID-19 coronavirus pandemic, influenza virus remains a
major threat to public health due to its potential to cause epidemics and pandemics with …

Pathogenic H7N9 avian influenza viruses continue to represent a public health concern, and
several candidate vaccines are currently being developed. It is vital to assess if protective …

In the early spring of 2013, Chinese health authorities reported several cases of H7N9
influenza virus infections in humans. Since then the virus has established itself at the human …

Avian H7N9 influenza viruses are group 2 influenza A viruses that have been identified as
the etiologic agent for a current major outbreak that began in China in 2013 and may pose a …

The H7N9 viruses have been circulating for six years. The insertion of a polybasic cleavage
site in the haemagglutinin (HA) protein of H7N9 has resulted in the emergence of a highly …

Influenza H7N9 virus continues to cause infections in humans and represents a significant
pandemic risk. During the most recent 5th epidemic wave in 2016/17 two distinct lineages …

Abstract Since 2012, H7N3 highly pathogenic avian influenza (HPAI) has produced negative
economic and animal welfare impacts on poultry in central Mexico. In the present study …

Background A systemic evaluation of the antigenic differences of the H7 influenza
hemagglutinin (HA) proteins, especially for the viruses isolated after 2016, are limited. The …

The substantial increase in prevalence and emergence of antigenically divergent or highly
pathogenic influenza A (H7N9) viruses during 2016–17 raises concerns about the epizootic …