Vaccines for pandemics

A new suit for every season An RNA virus, influenza is made up of eight segments: a highly conserved six-segment backbone that changes little from one strain to the next, and two antigenic segments— hemagglutinin (HA) and neuraminidase (NA). Two types of influenza account for most human illness; influenza A, with 16 known subtypes (determined by their two… CONTINUE READING