Effect of intervention practices to control the porcine epidemic diarrhea (PED) outbreak during the first epidemic year (2013-2014) on time to absence of clinical signs and the number of dead piglets per sow in Japan

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 shares their summary of a publication on the intervention practices put in place in Japanese herds to control Porcine Epidemic Diarrhea.

Key Points

  • There was little to no research on factors affecting time to absence of clinical signs (TAC) and dead piglets/sow (DP/S) during PED infections.
  • Good external biosecurity in the form of clean transport methods and one-way truck entrances is significantly associated with lower TAC and DP/S.
  • The timing of feedback relative to the PED outbreak was more important than the method of feedback.
Continue reading “Effect of intervention practices to control the porcine epidemic diarrhea (PED) outbreak during the first epidemic year (2013-2014) on time to absence of clinical signs and the number of dead piglets per sow in Japan”

Environmental monitoring as an educational tool in a PEDV outbreak

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 sharing a report from the Kansas State University about monitoring PEDv in the environment.

Key Points

  • Environmental monitoring can highlight biosecurity gaps and be an educational tool
  • Biosecurity involves exclusion and containment
  • Staff involvement in monitoring results and solutions can be critical to staff behavior and motivation
Continue reading “Environmental monitoring as an educational tool in a PEDV outbreak”

MSHMP Incidence Year 2018/2019 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.

Today, we are sharing the 2018/2019 summary for the Morrison Swine Health Monitoring Program from the MSHMP team lead, Dr. Cesar Corzo and what his vision for the future is.

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Best of Leman 2018 series #9: K. VanderWaal – Can we predict PRRS and PED outbreaks?

This is a favorite on the blog. Once a month, we are sharing with you a presentation given at the Allen D. Leman swine conference, on topics that the swine group found interesting, innovative or that lead to great discussions.

We can find all of the presentations selected from the previous years’ conferences on the blog here.

Our ninth presentation is from Dr. Kim VanderWaal, our colleague at the University of Minnesota, who gives us a glimpse into a future when producers might be able to know when their farms are at risk of disease outbreaks.

Continue reading “Best of Leman 2018 series #9: K. VanderWaal – Can we predict PRRS and PED outbreaks?”

Science Page: Incidence Year 2017/2018 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.

This week, Dr. Cesar Corzo is giving us a summary of the 2017/2018 year.

Objective 1 – Disease incidence and monitoring

PRRS – Unfortunately 31% of the herds in the project broke with PRRS making it the third highest incidence in the MSHMP history. The epidemic initiated at the same time of the year following previous years’ pattern. As with previous years, we continue to see viral introduction into 1) status 4 breeding herds in low dense regions and 2) filtered sow herds reminding us that there continues to be unanswered questions from a transmission standpoint.

PEDv – The year ended at 8% (1% increase compared to the previous year) with a series of outbreaks occurring in 12 farms that had never been exposed to PEDv.

PDCoV – Even though we have not been including a graph we continue to monitor for this virus. There has been minimal activity.

SVV – Incidence of this virus remained low and did not follow the seasonal pattern seen in the previous 2 years.

Atypical CNS Cases – These viruses continue to be found in specific cases with no apparent trend.

Objective 2 – Prospective monitoring of PRRSv

PRRSv sequences continue to be collected building a library for MSHMP participant use. We have used this approach a few times while outbreak investigations have been conducted. We are currently conducting monitoring in a three-company based region detecting newly emerged viruses. On the other hand, the database is being analyzed in a way that provides epidemiological sense. We will report more on this in an upcoming report.

Objective 3 – Develop capacity to capture and analyze movement data

We have been able to generate a process to record movement data (i.e. starting and ending location,speed, trip duration) together with a visualization package in Google Earth. Although we have proved the concept we have faced technology challenges during the development phase and we are currently revisiting our approach.

Objective 4 – To expand participation of producers to allow all to be involved

Expansion continues with existing participants adding more farms. There have been other production systems that have either signed the
enrollment forms and are in the process of submitting their data or other production companies that have verbally agreed to join.