HOST CELLS

Influenza viruses can use two ways to infect cells: Study

The majority of type A influenza viruses found in birds and pigs do not pose a health concern to people. However, the viruses might represent a problem if there is an outbreak, such as the one presently occurring in dairy cattle in the United States, or during seasonal epidemics. In rare situations, a virus can spread from animals to people, potentially causing a worldwide pandemic.