Herd closure with various exposure methods, DRP, TR, and combined approaches can effectively eliminate PRRSV at sow farms and the regional level. Regional elimination requires coordinated efforts, mandated testing, movement restrictions, and the use of predominantly DRP strategies. This review provides evidence-based options for veterinarians and producers to tailor PRRSV-elimination strategies and outcomes to farm-specific factors, such as size, biosecurity, pig flow, and resources, thereby improving elimination success rates.
Pepin et al. (Wed,) studied this question.