Vaccines that are used to address foreign animal diseases have a very important characteristic that must be present: They must distinguish between natural infection and vaccination. It's called a DIVA vaccine. It will be very important that vaccines for FMD, or maybe ASF in the future, be DIVA vaccines so that we are able to determine that the animals have been vaccinated versus naturally infected with a disease. Ultimately, we want to make sure that animals that are infected with the disease are dealt with immediately and promptly to reduce the spread of infection.
On May 3rd, 2023. See this statement in context.