The Swine Health Information Center funds the Morrison Swine Health Monitoring Project and shares key deliverables derived from its activities. In December 2025, upon review of MSHMP’s 2025 accomplishments and proposed 2026 objectives, the SHIC Board of Directors renewed funding for 2026. MSHMP gathers information on the health of the US swine herd from more than 30 production systems participating voluntarily, analyzing data to track disease trends and monitoring for emerging pathogen activity. Led by principal investigator Dr. Cesar Corzo and the MSHMP team at the University of Minnesota, MSHMP delivers reliable and consistent swine health monitoring data for the US industry.
In the MSHMP summary of 2025 key outcomes, Dr. Corzo noted the US swine industry dealt with PEDV twice in 2025 across two epidemics. Both epidemics occurred in the fall/winter seasons, consistent with historical reporting. However, the last time two PEDV epidemics occurred in one year was in 2022.
The 2024-2025 and current 2025-2026 PRRSV seasons followed a similar trend as PEDV, with growing frequency of detection. New variants such as the L1C.5.32 were tracked as causing higher losses in affected herds. During 2025, MSHMP developed and launched the Variants Under Monitoring (VUM) initiative to better inform and aid industry stakeholders about PRRS variant activity. Through the VUM project, MSHMP characterizes and groups newly emerged variants into different categories based on the number of new sites affected in the previous six months. These VUM reports are featured in SHIC’s monthly newsletter.
During 2025, the MSHMP team focused on database improvements to enable more informed disease metric calculations. As part of this effort, the team focused on influenza quantification by estimating cumulative incidence. While improvement for breeding herd classification is still needed, Dr. Corzo said they have confirmed that estimation of cumulative incidence is feasible within the current MSHMP framework.
MSHMP also added Mycoplasma hyopneumoniae to its list of monitored agents. During the second part of 2025, and thanks to a regional initiative in the state of Minnesota, the prevalence of Mycoplasma hyopneumoniae in breeding herds was estimated at approximately 10%. Ongoing efforts in 2026 will focus on expanding data collection from the MSHMP network to support the development of national-level estimates.
Dr. Corzo outlined MSHMP’s priorities for the newly funded year, writing, “During 2026, we propose to continue to bring meaningful information to our participants and the US industry. Our commitment to continue to provide actionable outputs remains our priority. The different objectives proposed for 2026 have been formulated based on participant feedback and industry initiatives. We believe that through these projects, we will continue to develop capacity to give the industry a better opportunity to voluntarily respond to emerging pathogens, and also continue our mission to deliver value to our participants, with the overarching goal of continuing to nurture the progressive collaborative efforts we have witnessed through this effort.”
MSHMP’s 2026 priorities include:
To continuously track and analyze trends in the incidence and prevalence of pathogens.
Characterize the frequency of breeding herd depopulation and repopulation events in the MSHMP database.
Determine whether the MSHMP participant network is interested in reporting Mycoplasma hyopneumoniae incidence/prevalence estimates and begin gathering information.
To sustain ongoing surveillance of the PRRS virus sequences impacting the US swine population.
Continue to develop a robust database to identify PRRSV variants to feed the recently launched Variants Under Monitoring program.
Develop and implement a methodology by which the time between outbreak and elimination of pathogens can be readily estimated using an endemic disease.
To enhance producer engagement, broaden representation, and facilitate access to timely and industry-relevant disease-related information.
Continue efforts to expand the competence of the MSHMP database to include filtration status and mortality management data.
The Swine Health Information Center, launched in 2015 with Pork Checkoff funding, protects and enhances the health of the US swine herd by minimizing the impact of emerging disease threats through preparedness, coordinated communications, global disease monitoring, analysis of swine health data, and targeted research investments. As a conduit of information and research, SHIC encourages sharing of its publications and research. Forward, reprint, and quote SHIC material freely. For more information, visit http://www.swinehealth.org or contact Dr. Megan Niederwerder at [email protected] or Dr. Lisa Becton at [email protected].
