Reprinted as posted on Swine in Minnesota blog . Adopted from September 3, 2021 Bob Morrison’s Swine Health Monitoring Project Friday rubric. Mariana Kikuti, Cata Picasso, Emily Geary and Cesar Corzo asses how long farms that choose to eliminate PRRSV from their herds remained as a naive status. Key Points Up to February 2021, 209 breeding herd moved to a PRRSV naive status a total of 259 times. On average, sites remained naive approximately two years before changing to a different status. Most naive sites moved to an active PRRSV break status in an average one and a half years. Continue reading on the Swine in Minnesota blog.