Investigation of ultraviolet C (UVC) doses in homemade UVC chambers with items commonly used on swine farms

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 week, the 2021 Morrison Swine Innovator Prize winner, Kaci Way has written a summary of her project with her mentor Dr. Kayla Henness from the Maschhoffs.

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Updated epidemiological curve of cases associated with the new PRRS Lineage 1C RFLP1-4-4 variant

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.

As the MSHMP team continues to monitor the detection of the newly described PRRSv Lineage 1C RFLP 1-4-4 variant, they are updating the epidemiological curve of cases associated with this variant.

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Post-epidemic dynamics of PEDV in the United States: Current trends and patterns

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 week, the MSHMP team is sharing what they are observing regarding Porcine Epidemic Diarrhea virus in the US. What are the trends and patterns emerging years after the epidemic?

Main Points 

  • Since July 2014, the number of PEDV yearly outbreaks reduced both numerically and in geographical distribution.
  • PEDV outbreaks occur seasonally, with most cases being detected during winter.
  • Spatial-temporal clusters of PEDV outbreaks were detected, most of which occurred prior to 2019.

Porcine epidemic diarrhea (PED) is a swine enteric viral disease first documented in the U.S. swine population in 2013, at which time it sparked a major epidemic. Since then, PEDV has persisted in the U.S. breeding herd with low incidence during the post-epidemic period. Despite continued monitoring and surveillance, there is minimal research and understanding of the endemic phase of PEDV in the country. Our objective was to characterize PEDV in the U.S. breeding herd in the post epidemic period (spatial-temporal distribution of cases and associated factors). 

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PRRSV 144 L1C: A Rapid Response to a National Crisis

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 partnership with Boehringer Ingelheim Animal Health USA Inc., Pipestone Research has provided a rapid response to bring science-based answers to managing the emergence of PRRSV 144. Based on field observations from practitioners and producers, stating that, “This is the worst strain of PRRSV ever,” “Vaccines don’t work anymore”, and “Biosecurity protocols are ineffective,” the team determined that immediate action was needed. 

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Report on the First African Swine Fever Case found in Greece in 2020

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 week, we are presenting a report by Bellou et al., from the Aristotle University of Thessaloniki, Greece on the first case of African Swine Fever discovered back in 2020.

Main Points 

  • In February 2020 the first African Swine Fever (ASF) case in Greece was diagnosed in a backyard swine farm.
  • Clinical symptoms were vague and necropsy findings could be attributed to other conditions, including ASF.
  • In areas neighboring high ASF-risk areas, ASF should always be included on the differential diagnosis, even in cases with mild symptoms, due to the high mortality rate and acute spread that ASF poses.
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