Description of a new clade within subtype 1 of Betaarterivirus suid 1 (PRRSV1) causing severe outbreaks in Spain

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

In this week’s Science Page learn more about a new PRRSV clade causing severe outbreaks in Spain, from Martí Cortey, Gerard E. Martín-Valls and Enric Mateu of Universitat Autònoma de Barcelona.

Continue reading “Description of a new clade within subtype 1 of Betaarterivirus suid 1 (PRRSV1) causing severe outbreaks in Spain”

Outbreak investigations of Actinobacillus pleuropneumoniae serotype 15 in central Iowa in the winter of 2021-22

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

Researchers from across the Midwest come together to bring you today’s Science Page: a look at an outbreak of Actinobacillus pleuropneumoniae serotype 15 and its associated losses.

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Harvesting Lessons Learned from HPAI Outbreaks in Poultry with Dr. Marie Culhane: A podcast

Dr. Marie Culhane is Professor at the University of Minnesota College of Veterinary Medicine who specializes in Influenza and emergency disease preparedness and management. The poultry industry has battled outbreaks of High Pathogenic Avian Influenza (HPAI) in recent years and as the old saying goes, “Your friends challenges are your cheapest learning opportunities”. We go in depth with Dr. Culhane on Influenza – what makes this a “shared disease” between humans, birds and pigs, what are the common control strategies employed across species and how can vaccine platforms help manage Influenza disease. We specifically focus on HPAI outbreaks and their analogies with reportable diseases in the swine industry. Poultry producers have had major HPAI outbreaks in 2015 and again now in 2022 – how have their biosecurity programs and diagnostic tools evolved over that period? How do they effectively implement control zones and permit requirements prior to movement? Ultimately, what have they done to improve the timeline from diagnosis to depopulation from 7 days to 36 hours from 2015 to 2022? Marie shares lessons learned about smallholder poultry operation management that correlates to similar smallholder swine operations as well as perspective about wild bird management akin to our challenges with feral swine management.

Understanding PRRSv Cross Protection & Immune Stimulation, Episode 23 Swine Doc Pod with Carthage

A Review of MSHMP’s Report PED Chart 3: PED Outbreak History

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This Friday we review MSHMP’s PED Chart 3, which shows the previous PED break history for farms which break with PED during the current year.

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Environmental contamination assessment in farms undergoing an outbreak with PRRS 1-4-4 Lineage 1C

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

The Morrison Swine Health Monitoring Project take a look at whether PRRSv cases associated with the linage 1C, RFLP 1-4-4 variant can be detected in the outside areas of farms undergoing an outbreak.

Key Points

  • There is little understanding of contributing factors aiding the 1-4-4 L1C PRRSv rapid transmission and biosecurity breaches
  • Environmental detection in recently infected farms was possible although detection was low
  • Most positive samples originated from exhausting fans, showing the virus may exit a positive barn via that route
Continue reading “Environmental contamination assessment in farms undergoing an outbreak with PRRS 1-4-4 Lineage 1C”