Flu viruses that normally spread in pigs are called “variant” viruses when they are found in people. While rare, influenza can spread from pigs to people and from people to pigs. This has happened in different settings, including fairs. The Centers for Disease Control and Prevention (CDC) recommends people take action to help prevent the spread of flu between pigs and people.
Influenza poses one of the world's greatest infectious disease challenges. CDC uses its scientific expertise and resources to address the continuing threat posed by seasonal and pandemic influenza.
Follow us on Twitter Q: How often do flu pandemics occur? A: Flu pandemics are very rare and the timing is unpredictable. 4 flu pandemics happened in the past 100 years; experts agree another one is inevitable. https://go.usa.gov/xymgp
