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/flash-find-Purina-Exclusive-Puppy-Food-Chicken-Brown-Rice-super-sale/