What is H1N1? How is it different from regular seasonal flu?
H1N1 Influenza is an acute respiratory disease of pigs, caused by one of several swine influenza A viruses. Outbreaks in pigs occur year round, with an increased incidence in the fall and winter in temperate zones. Many countries routinely vaccinate swine populations against swine influenza. Although swine influenza viruses are normally species specific and only infect pigs, they do sometimes infect people who come into close contact with pigs. The current “swine flu” virus is now a human influenza virus.
