PEDV - Lessons Learned in Preparation for the Next Event - Paul Sundberg, DVM, PhD, Dipl ACVPM, Vice President, Science and Technology, National Pork Board, from the 2014 NIAA Annual Conference titled 'The Precautionary Principle: How Agriculture Will Thrive', March 31 - April 2, 2014, Omaha, NE, USA.
More presentations at http://www.trufflemedia.com/agmedia/conference/2014_niaa_how_animal_agriculture_will_thrive
Glomerular Filtration and determinants of glomerular filtration .pptx
PED Lessons Learned for Disease Prevention
1. PED – Lessons Learned?
Paul Sundberg DVM, PhD, Dipl ACVPM
VP Science and Technology
National Pork Board
2. Lessons We’re Learning (So Far)
1. Diagnostic lab data sharing ability for disease analysis
2. Premises Identification Number on VDL submission form and producer
acceptance of sharing data for disease analysis
3. Biosecurity, biosecurity, biosecurity
a. Packing plants
b. All truck traffic on/off the production sites
c. Animal transportation
4. Epidemiology and transmission
5. Immunity and environmental viral load
a. Sow farm selective rebreaks and elimination
6. You can’t afford to be comfortable or complacent
7. Industry and Government roles and responsibilities
2
3. National Pork Board Organization
• PED Strategic Task Force
– NPPC
– AASV
– NPB
– USDA
– VDL
– SAHO
– Producers
– Practicing vets
• Biosecurity Working
Group
• Biocontainment
Working Group
• Packer Biosecurity
Working Group
4. Diagnostic lab data sharing
ability for disease analysis
Premises Identification Number
on VDL submission form and
producer acceptance of sharing
data for disease analysis
8. The role of harvest plant lairage and
transportation in propagating the initial
stages of an outbreak of Porcine
Epidemic Diarrhea Virus in the United
States in 2013.
James F. Lowe, DVM, MS
Diplomate ABVP (Food Animal)
Lowe Consulting Ltd.
Department of Veterinary Clinical Medicine, University of Illinois
9. What we learned
1. Trailers can become contaminated at packing
plants but less than one clean trailer is
contaminated for each contaminated trailer that
arrives a the plant.
2. There is contact by EVERY driver with the plant
lairage and that appears to be sufficient to allow
for PEDV movement between trailers.
3. More contact between trailer and plant is
associated with higher rates of PEDV spread
13. • Air – low
• Spread by humans – moderate
• Vehicles or other equipment – moderate
• Pig movements – negligible
• Water – ‘not likely’
• Feed pellets – moderate
• Bedding materials – low
Illinois Rapid Response Team - Risks
14. Ohio Rapid Response Team - Risks
• Spread by workers – low
• Vehicles or other equipment – low
• AI or veterinary supplies – negligible
• Pig movements – low
• Feed ingredients / commercial meal mix –
‘not likely’
• Feed pellets – high
• Water, air, shavings – negligible
15. Feed Risk – What Do We Know?
• PED is not a human health or food safety issue.
• The disease is impacting farms of a variety of sizes and
production types and needs to be prevented through a
variety of biosecurity procedures.
• PCR is an important tool to use in assessing contact with
the virus
• There are multiple methods of PED transmission
including environmental, transportation, feed systems
and other vectors.
16. Feed Risk – What Do We Know?
• Within processing feed ingredients and feed processing
there is a time x temperature that should be effective in
inactivating the virus
• Post processing contamination can occur in different
segments of the feed supply chain
• Pork industry stakeholders, veterinarians, producers,
nutritionists and feed processors, agreed to a disciplined
research approach to attack PED
18. PEDV Research Priorities
• Basic characteristics and pathogenesis of PEDV
• Development & validation of diagnostic tests (antigen and
antibody)
• Environmental stability on various surfaces and substrates and
effectiveness of sanitation efforts
• Epidemiology of the disease
• Sow Immunity
• Duration of immunity; Optimizing feedback protocols;
Diagnostic tests to assess sow and piglet immunity to PEDV
18
19. 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…
20. You can’t afford to be
comfortable or complacent
Industry and Government
Roles and Responsibilities
22. NPPC 2014 Forum Resolution
• A listing of non-reportable swine diseases not in the United
States
• Responsibilities of the government, industry organizations,
producers and the pork chain in surveillance and response
• Coordinated strategies to respond to and contain or
manage disease
• Strategies for the efficient sharing of information deemed
necessary containment / control
• Strategies to strengthen the defense of the US pork
industry