Question

Because the influenza virus is segmented, when two different strains infect the same cell, a major change in the virus can occur that is called __________.

Answer 1

Called the: Antigenic Shift

Influenza viruses undergo antigenic shift, an abrupt, major change in the virus's antigens that happens less frequently than antigenic drift . It occurs when two different, but related, influenza virus strains infect a host cell at the same time.