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Dr. Lisa Becton - PEDV: What Can Producers Do To Reduce Their Risk?


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PEDV: What Can Producers Do To Reduce Their Risk? - Dr. Lisa Becton, Director of Swine Health Information, National Pork Board, from the 2014 Minnesota Pork Congress, January 14-15, Minneapolis, MN, USA.

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Dr. Lisa Becton - PEDV: What Can Producers Do To Reduce Their Risk?

  1. 1. PED Update Lisa Becton, DVM, MS, DACVPM Dir. Swine Health Information National Pork Board
  2. 2. Current Status of PED • PED continues to be a major health challenge for U.S. producers • Since it was first diagnosed in May of 2013, there have been a total of 2084 cases reported: – CASE reports are different than SITE reports. – IA = 770; OK = 272; NC = 301; MN = 217; KS = 143 – Data can be found at
  3. 3. PED case #’s/month (as of Dec 28th, 2013) States OH, IN, IA CO, MN, PA, OK, MO, SD, IL, MI KS, NY, NC TN, TX WI # of PED cases for Minnesota - 2013 120 100 KY, MD 80 NE, CA, WY # cases January February March April May June July August September October November December Case #'s 0 0 0 12 103 197 122 119 173 252 394 712 60 40 20 0 Jan Feb Mar April May June July Aug Sept Oct Nov Dec
  4. 4. National Pork Board Focus • Assist in the investigation of source of the virus • Research on PEDv and impact for US producers • Development and communication of producer information/resources • Containment/management strategies – Work with USDA and develop next steps for emerging disease response – Other needs?
  5. 5. PEDv Research Efforts • Since June of 2013, the Board has approved $>1 million for use for PEDv since June 2013 – Additional $$$ from State Associations • 2013 research focus: – Study of how PEDv effects pigs – Development of diagnostic tests for PEDv – Development of methods to grow the virus (vaccine and test development) – Survivability in feed, water, manure, slurry, and in trailers – Methods to kill PEDv/PRRS
  6. 6. 2013/2014 PEDv research focus • Fall 2013 – Focus on formation and duration of sow immunity after infection – What level of immunity is needed for full protection? – How do we measure sow status and response to feedback? • Spring 2014 – Focus on continued management strategies and surveillance for PEDv – How do we continue to develop/validate diagnostic tests to provide information on disease status? – Seed-money for vaccine development – Evaluate effectiveness of biosecurity interventions
  7. 7. PEDv – what do we know so far? (All research information is posted at ) • PEDv spread = fecal/oral – Transmits through contaminated manure; anything in contact with PEDv + manure can be a potential source of infection • Rapid spread especially in high density areas! • Virus survives under different conditions: – Survive in cold conditions – Can survive in dry and slurried feed – Can survive in slurry, feces, water
  8. 8. PEDV Research Results • Fecal shed peaks at 5-6 days post infection and most animals stop shedding virus after 21 days • Virus is NOT shed in the respiratory tract and not aerosolized…BUT, does it move in the wind on dust particles? • Virus can be killed at 160°F for 10 minutes OR maintaining them at room temperature (68F) for at least 7 days. (This is without cleaning or disinfection)
  9. 9. Biosecurity Guidelines • PED is a complex virus to deal with, so create barriers between farm/pigs and potentially contaminated areas • Line of Separation: is defined as the line between the area that is to be used by the non-farm personnel and the area to be used by farm personnel – Applies to ANY service (transport; manure haulers etc.)
  10. 10. Identify the “Line of Separation”
  11. 11. Examples of the Line of Separation
  12. 12. PED Resources • • Resources include: biosecurity updates, newsletters and research updates
  13. 13. PED Manure Hauling Guidelines 13
  14. 14. PED Transportation Guidelines 14
  15. 15. Other PED Resources • Recommendations available for: – – – – – – – Exhibit Organizer Biosecurity Exhibitor Biosecurity Positive in Breeding Herd Positive in Nursery/Grow-Finish Line of Separation Create Clean Crossing Additional resources…
  16. 16. Ongoing Lessons from PED Preparation for the Next Disease Events Issues 1. Data confidentiality - Premises ID and permission to use for disease analysis 2. Housing of data, analysis and reporting 3. Cooperation of VDLs when acting as a business center 4. PRV Control Board model for emerging diseases 5. Rapid Response Teams for outbreak investigation
  17. 17. Questions? This message funded by America’s Pork Checkoff Program.