Emerging PRRS Virus Strains L1C 1-2-4 and Rosalia: Want to Learn More?

In the U.S., PRRSV L1C variant of RFLP 1-4-4 has been a significant challenge. Now PRRSV L1C 1-2-4 is a concern. In Spain, a PRRSV strain called Rosalia is causing problems. Here’s an opportunity to learn more.

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(National Pork Board and the Pork Checkoff)

Emerging diseases often come with familiar names coupled with increased risk and need for response. For example, in the U.S., the porcine reproductive and respiratory syndrome virus (PRRSV) L1C variant of RFLP 1-4-4 has been a significant challenge in the Upper Midwest for two years and now PRRSV L1C 1-2-4 has become a concern, the Swine Health Information Center (SHIC) reports. In Spain, a PRRSV strain with increased virulence known as Rosalia has affected production since 2020.

Because of this, SHIC will be hosting a webinar to discuss these emerging PRRSV strains on Tuesday, Feb. 21 at 11 a.m. CT along with the American Association of Swine Veterinarians and Iowa State University’s Swine Medicine Education Center.

Webinar participants include

  • Dr. Enric Mateu, Autonomous University of Barcelona, Spain
  • Dr. Daniel Linhares and Dr. Giovani Trevisan, Iowa State University
  • Dr. Clayton Johnson, Carthage Veterinary Service in Illinois
  • Dr. Paul Yeske, Swine Vet Center in Minnesota

All have hands-on experience with emerging PRRSV strains and will share their perspectives on clinical presentation, production losses, detection and spread, regional differences, response strategies and what they have found to be successful in control or elimination from herds in the US and potential lessons learned from Spain, SHIC reports.

Registration is now open. Click here to register for the Zoom webinar.

“As part of SHIC’s effort to inform the swine industry on emerging swine diseases and emerging swine health issues, SHIC collaborates with AASV and SMEC to host webinars. Goals are to address current ‘industry chatter’ and provide information for veterinary practitioners and producers on field experience, detection and management/control strategies,” SHIC says.

More from Farm Journal’s PORK:

Bringing Clarity to PRRS ‘Cloudiness’

When All Hell Broke Loose: Our PRRS Outbreak

Wind, PRRS and Pig Farm Biosecurity: Learn from Our Outbreak

Persistent PRRS Strains Pose Challenges for Pork Producers

PRRS Strain 1-4-4: The Most Dramatic Strain I’ve Seen, Yeske Says

Naïve or Not? The Never-Ending Dilemma of Sow Farm PRRS Status

PRRS: Deciphering the Mystery Disease

The Fight Isn’t Over

5 Ways PRRS Made Us Better

Researchers Look for Ways to Control PRRS Via the Microbiome

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After a devastating windstorm leveled his finishing barns in 2013, Kameron Donaldson leveraged community support and a data-driven partnership with Dykhuis Farms to secure a future for the next generation.
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