MSHMP: Incidence Year 2020 / 2021 Annual Summary

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 2020-2021 MSHMP incidence year again brought us unexpected events and chances to learn. We were able to meet these challenges only because you as an MSHMP participants continue to share your data. We would like to provide a general update and summary of where we are at this point.

Continue reading “MSHMP: Incidence Year 2020 / 2021 Annual Summary”

How many cases are we seeing of the new PRRS 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 provide an update of the epidemiological curve of cases associated with this variant.

Continue reading “How many cases are we seeing of the new PRRS variant?”

Ability of different matrices to transmit African swine fever virus – Part 2

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.

For this week we continue with the summarized results from the Panel on Animal Health and Welfare (AHAW) of the European Food Safety Authority’s (EFSA) published opinion on the risk of African Swine Fever virus entering into non-affected areas of the EU. Several components were modeled as part of the overall modeling of the relative risk of ASF entering a non-affected area of the EU. Last week’s science page covered the first component, the Likelihood that a single farm delivery of a product will contain a dose of infectious ASFV, which is large enough to cause an infection in at least one pig on the farm (‘q’). In this follow up page we will look at the last two modeled components of the risk assessment.

Continue reading “Ability of different matrices to transmit African swine fever virus – Part 2”

Ability of different matrices to transmit African swine fever virus

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 summarized a report from the European Food Safety Authority (EFSA) regarding African Swine Fever transmission through fomites.

Continue reading “Ability of different matrices to transmit African swine fever virus”

Breeding herd Senecavirus A infection: understanding its persistence

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, Dr. Guilherme Preis, PhD candidate working with Drs. Cesar Corzo and Fabio Vannucci, shares his latest results about Senecavirus A persistence in sow farms after an outbreak.

Key points

  • Senecavirus A (SVA) continues to be responsible for an important number of FAD investigations.
  • SVA continues to circulate in breeding herds for up 21 weeks after clinical signs had been detected.
  • Heat check boars may contribute to population persistence of this virus. 
Continue reading “Breeding herd Senecavirus A infection: understanding its persistence”