The biggest threat is a breakdown of border control

Dr Francois van Niekerk is a leading South African veterinary surgeon, who has one of the country’s largest pig producers among his clients. He urges pig farmers around the world to devote more time to vaccination, biosecurity and surveillance. By Roger Abbott Vaccination, biosecurity and surveillance are vital to protect both the national and international health statuses of the pig industry, says Dr Francois van Niekerk, 67, who has a general farm animal practice in Humansdorp in