Swine influenza viruses are influenza viruses that occur naturally among pigs and cause outbreaks of respiratory diseases among pigs. Swine influenza viruses do not normally infect people, but some human infections have occurred, usually after contact with infected animals or surfaces contaminated with their secretions or excretions, for example at a fair or among swine industry workers. When swine flu viruses infect human they are called “variant” influenza viruses. Illness in people is similar to that of human seasonal influenza.
Variant influenza infection (i.e., human infection with swine influenza strains) is immediately reportable in Orange County, even if the case has not yet been confirmed but is suspected. To report a case, health care providers/facilities should call OCHCA Epidemiology at 714-834-8180.
Healthcare Professionals
Last updated January 14, 2019
