October Domestic Swine Disease Monitoring Report Now Available

Oct 09, 2025

The Swine Health Information Center’s (SHIC) October Domestic Swine Disease Monitoring Report is available.

This month’s Domestic Swine Disease Monitoring Report shows that PRRSV case positivity in wean-to-market pigs has climbed to 41.46%, representing an increase of 6.28% compared to the same period last year. This emphasizes the need for stronger monitoring, biocontainment, and biosecurity practices in production sites. A bonus page highlights that PRRSV lineage 1C.5 continues to dominate, with 3,347 detections in 2025 already surpassing the total from 2024. Iowa alone accounts for 1,182 PRRSV 1C.5 cases. Illinois reported its first detection of PRRSV 1C.5.33. Pennsylvania had its first PRRSV 1C.2 detection in 2025; previous detections occurred in 2023 and 2024. Co-detection of IAV and PRRSV positive cases rose from 6% in July to over 10% in September, with IAV case positivity experiencing a substantial increase, reaching 35.66% in the wean-to-market category.

In the podcast, Dr. Daniel Boykin, senior veterinarian at Smithfield Foods, discusses rapid response and biocontainment for emerging PRRSV strains, tips on preparedness for biosecurity practices, and next steps in regional control of PEDV and M. hyopneumoniae.

View the full report dashboards and listen to podcasts in the online portal. No login required.

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Video: Season 7, Episode 2: From Data to Decisions in Swine Production

Data can provide a clear picture of trends and performance across a swine farm, but its greatest value comes from putting those insights into action. In this episode, Dr. Edison Magalhães, assistant professor in the department of animal science at Iowa State University, discusses how producers can leverage data to make informed decisions that improve herd performance from birth to market. He highlights the challenges of siloed data across different teams, the impact those gaps can have on performance and the importance of integrating data to gain a more complete picture of herd health and productivity. He also explains the PROSPER (Predictors of Swine Performance) tool, which combines data from multiple sources to help producers better understand herd performance.