• Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.
• Wash your hands often with soap and water, especially after you cough or sneeze. Alcohol-based hands cleaners are also effective.
• Avoid touching your eyes, nose or mouth. Germs spread that way.
• Stay home if you get sick. CDC recommends that you stay home from work or school and limit contact with others to keep from infecting them.  

Follow public health advice regarding school closures, avoiding crowds and other social distancing measures. These measures will continue to be important after a novel H1N1 vaccine is available because they can prevent the spread of other viruses that cause respiratory infections.

Source: CDC H1N1 Flu | H1N1 Flu and You