Caption: Command Master Chief Joseph Vukovcan prepares to receive his annual flu shot on board Naval Air Station (NAS) Whiting Field. A needleless system is used to give the vaccine, which uses compressed carbon dioxide to insert the vaccine under the skin. U.S. Navy photo by Chief Mass Communication Specialist Jay Cope (RELEASED U.S. NAVY)
You may have heard about swine flu. Swine flu is caused by a virus. It may have started in pigs, but people can't get this flu from pigs. People cannot catch the virus from eating pork, either.
Swine flu is now called H1N1. Like other kinds of flu, it is spread from person to person. People who have the flu spread the virus by coughing and sneezing. Other people may breathe in the virus from the air. After people talk, cough, or sneeze, the viruses can land on desks and other objects. People who touch these objects get the viruses on their hands. Then, if they touch their mouths or noses, the flu viruses get inside their bodies and can make them sick.