ABSTRACT Influenza A viruses cause an annual contagious respiratory disease in humans and are responsible for periodic high-mortality human pandemics. Pandemic influenza A viruses usually result from the reassortment of gene segments between human and avian influenza viruses. These avian influenza virus gene segments need to adapt to humans. https://www.bekindtopets.com/hot-savings-Rose-Checkerboard-Galaxy-A51-5G-Clear-Case-p109260-deal-zone/