Systematic Veterinary Virology

CONTROL AND ERADICATION

• Vaccines: Vaccination of pregnant sows is being tried but commercial vaccines are not yet available.
• To reduce risk of spread, animals from serologically negative herds alone should be introduced and the swill should always be sterilized.
• If an outbreak occurs, good hygiene practices can help reducing the impact of the disease. The spread can be prevented by isolating the newborn piglets. 
• The other approach aims to minimize the duration of the disease by exposing all the pregnant sows to the disease to develop transplacental immunity of farrows.