What is the H1N1 flu virus?
The H1N1 flu virus is a new strain of pandemic influenza which is different than the seasonal flu. People have no natural immunity to protect against this virus. The H1N1 flu virus emerged in April 2009 and surveillance of its spread shows that it is affecting more young and healthy people than the regular seasonal flu, which normally affects seniors and young children. People with underlying medical conditions and pregnant women may be at a greater risk for severe illness.
The H1N1 flu virus – also known as human swine influenza – is a respiratory illness that affects the nose, throat and lungs. This virus usually affects pigs, but has been transferred to humans.