Myth Busters: The Facts About How African Swine Fever (ASF) Spreads

Myth #1: ASF is the next human pandemic.

ASF is a highly contagious viral disease infecting wild and domestic pigs. It is NOT a threat to human health. The virus cannot spread from pigs to people- it cannot make people sick and is not a food safety concern.

However, people can spread ASF, so it's crucial to raise awareness about this disease. ASF has killed millions of pigs worldwide. It is found in countries worldwide, including the Caribbean islands of Haiti and the Dominican Republic. We remain on high alert because an ASF outbreak in the United States would devastate our farmers, food supply and economy.

Myth #2: ASF can be cured.

Unfortunately, no. There is no treatment or USDA-approved vaccine for ASF. The only way to stop the disease is to depopulate all affected and exposed pigs. Preventing introduction is key!

Myth #3: ASF and swine influenza are the same.

No, these are different diseases. Swine influenza is caused by a different virus than the virus that causes ASF. Influenza A is common in swine. It can cause a mild respiratory illness, and most pigs recover within a week. Contrastingly, ASF is a deadly viral disease of swine.

Myth #4: ASF can't survive in processed foods.

Incorrect! The ASF virus is hardy. It can survive freezing, smoking, and a range of cooking temperatures, so foods containing pork (like sausage, pernil, and pasteles) could carry the virus. It's critical not to bring pork when traveling from any country, including to and between the U.S. mainland, U.S. Virgin Islands and Puerto Rico.

Myth #5: ASF is only transmitted through direct contact with pigs.

No, ASF can spread via contact with infected pigs, pork, AND through contact with contaminated objects and even ticks. Because the virus can survive on clothing, shoes, or vehicles, people can unknowingly spread the disease. Wait at least five days before visiting any facility with pigs after you return.

Thanks for taking the time to learn more about ASF! Please spread the word and share this information with anyone you know who may be traveling.

To learn more about how you can help prevent the spread of ASF when you travel, visit: https://www.aphis.usda.gov/traveling-with-ag-products/asf