- Top publications | February 2023
- Mariana Kikuti et al.
Hesitation on eliminating PRRSV from breeding herds exists since it is difficult to predict how long the herd will remain virus-free. We aimed to estimate the time that breeding herds remained virus-free (naïve) after PRRSV elimination was achieved. Production systems shared their breeding herds’ health status weekly. PRRSV incidence rate and the total number of days a breeding herd remained virus-free were estimated. A total of 221 (17%) herds reached the naïve status 273 times. The median time sites remained in this status was approximately two years. The overall PRRS incidence rate after sites achieved a naïve status was 23.43 PRRS outbreaks per 100 farm years.