The constant movement of pigs, people and equipment creates significant pathways for disease transmission in multi-site swine production. Recent research showed finisher sites were the most vulnerable, with an 82.4 percent outbreak rate, compared to wean-to-finish (66.7 percent) and nurseries (33.3 percent).
Source: PORK, March 23, 2026. Link. The study suggests prioritizing biosecurity and surveillance on high-risk finisher sites is beneficial, along with a review of practices adopted during carcass disposal, employee downtime, and any cohabitation with other swine workers.
Image: Link.