The best way to prevent infection with avian influenza A viruses is to avoid sources of exposure. Most human infections have occurred following direct or close contact with infected poultry. Because rare episodes of limited, non-sustained human-to-human transmission of HPAI H5N1 virus has been reported, persons should avoid sick patients who have suspected or confirmed HPAI H5N1 virus infection. To date, there have not been any reports of avian flu virus infections among wild birds, poultry, or other animals or humans in the United States.
CDC Avian Influenza information