Dr. Troy Bigelow - Veterinary Services' Current Swine Activities and Updates

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Veterinary Services' Current Swine Activities and Updates - Troy Bigelow, DVM, USDA, APHIS, VS, NCAHP, 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

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Dr. Troy Bigelow - Veterinary Services' Current Swine Activities and Updates

  1. 1. USDA Swine Program Initiatives and Updates: Collaborations to Achieve Results Troy T. Bigelow U.S. Department of Agriculture Animal and Plant Health Inspection Service Veterinary Services April 1, 2014 Veterinary Services
  2. 2. Veterinary Services Swine Health Programs Overview • Update on surveillance and program activities – PRV, SB, CSF, IAV-S • PEDV collaborations • VS swine health activities towards enhancing surveillance • Next steps 2
  3. 3. Veterinary Services Swine Surveillance Pseudorabies FY 13 3 Surveillance Stream Fiscal Year 2013 Diagnostic Laboratory Serologic Submissions 23,695 swine from 4,240 herds Cull Sow-Boars at Slaughter 239,284 Market Swine at Slaughter 11,370 Feral Swine 2,393 Swine Cases Highly Suspicious for PRV ------ Total 276,742
  4. 4. Veterinary Services Swine Surveillance • Pseudorabies – States submitting samples from herds with high probability of contact with feral swine receiving positives and coordinating traceback – 99.9 percent of domestic swine samples were negative – 21 percent of feral swine tested positive (FY13 convenience samples) 4
  5. 5. Hotspot Analysis 5 Slide provided by VS, STAS,CEAH
  6. 6. • FY14 PRV initiatives: – TAIO? Tool for assessment of intervention options (part of overall comprehensive TAIO) – Collaborating with industry on PRV sample reduction initiatives – Collaboration with States high risk samples – Updating list of high risk states – Improve the capture of State and premises identifying information on market slaughter (meat juice) and NAHLN samples 6 Veterinary Services Swine Surveillance
  7. 7. • Swine Brucellosis FY 13 – TAIO? – Collaborating industry on SB sample reduction. – Implementing SB into NAHLN system 7 Veterinary Services Swine Surveillance
  8. 8. • Classical Swine Fever – Goals of rapidly detecting disease – Targets 5 areas • Waste feeder/backyard (high priority) • Sick pig specimens to VDL • Slaughter swine with risks • Feral swine • FAD investigations 8 Veterinary Services Swine Surveillance
  9. 9. Surveillance Stream FY 2013 Animals FY 2013 Specimens Sick Pigs Specimens submitted to VDL 2,281 2,285 Slaughter Swine meeting collection definition 2,284 2,285 Swine with high probability of exposure 3,991 3,991 Other tested samples (low risk) - - Feral Swine 2,383 2,383 FAD Submission 4 NR 9 Veterinary Services Swine Surveillance (CSF) Even with PEDV highlighting the importance of rapid detection, zero swine FAD’s were reported in FY13
  10. 10. CSF Improvement • Improve data quality (no state of origin reported) • Continue efforts to transfer CSF serology to NAHLN laboratories • Promote correct VS form usage for collection of samples • Explore CSF testing platform possibilities 10 Veterinary Services Swine Surveillance
  11. 11. 11 Month Diagnostic sick domestic swine submissions Swine associated w/ public health investigations Sick pigs at concentration points or commingling events All Surveillance streams Accessions Samples Accessions Samples Accessions Samples Accessions Samples Oct 2012 507 2,173 … … … … 507 2,173 Nov 2012 418 1,969 … … … … 418 1,969 Dec 2012 393 1,920 … … … … 393 1,920 Jan 2013 423 1,681 … … … … 423 1,681 Feb 2013 339 1,463 … … … … 339 1,463 Mar 2013 366 1,629 … … … … 366 1,629 Apr 2013 417 1,873 … … … … 417 1,873 May 2013 378 1,758 … … … … 378 1,758 Jun 2013 372 1,701 1 5 1 14 374 1,720 Jul 2013 382 1,581 1 5 … … 383 1,586 Aug 2013 451 1,699 1 1 … … 452 1,700 Sep 2013 538 2,247 2 5 1 1 541 2,253 FY 2013 4,984 21,694 5 16 2 15 4,991 21,725 Veterinary Services Swine Surveillance Influenza A Virus in Swine
  12. 12. Influenza A Virus in Swine 12 Veterinary Services Swine Surveillance
  13. 13. 13 Veterinary Services Swine Surveillance 0 10 20 30 40 50 60 70 80 90 Oct-10 Nov-10 Dec-10 Jan-11 Feb-11 Mar-11 Apr-11 May-11 Jun-11 Jul-11 Aug-11 Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Nov-12 Dec-12 Jan-13 Feb-13 Mar-13 Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 H1N1 H1N2 H3N2 Mixed Figure 2. Number of accessions with each IAV-S virus subtype present by month (FY10 through FY13)
  14. 14. • PEDV – Confirmed by NVSL in May 2013 – VS cooperation with states and industry • Conference calls • Notifications – VS is actively participating in: • Risk assessments, diagnostic testing (including bioassays), assisting in epidemiological investigations to determine route of disease spread, strategic task force, disease reporting, supporting research – VS NAHLN is instrumental, information reporting 14 PEDV Activities
  15. 15. 15 Map of States with Positive PEDV Biological Accessions
  16. 16. 16
  17. 17. • What is Comprehensive Integrated Surveillance (CIS)? – CIS is a standardized data collection and information management approach that facilitates designed sample targeting in response to multiple and evolving swine health information needs. • October, 2013 -USAHA resolution update of Comprehensive Integrated Surveillance in Swine (CISS) activities on implementing surveillance through appropriate surveillance streams and results. 17 Collaborations to Achieve Results
  18. 18. 18 Data Stream Targeted Pathogen-Specific Surveillance Non-Pathogen Populations CSF FMD ASF IAV- S PRV SB Other Specific Surveillance Harvest (slaughter) surveillance Market swine 1⁰ Commercial-growers & finishers /pork X X Cull sow boar 1⁰ Commercial- breeding populations X X X Roaster 1⁰ Commercial; High probability of dz X FAD / Emerging disease reporting Foreign animal disease investigation Domestic and feral swine X X X X X Suspicious cases reported Domestic and feral swine X X X X X X X X Comingling locations Live animal markets Domestic and feral swine X X Public exhibitions, sick pigs Domestic swine X Suspicious cases reported Domestic and feral swine X X X X X X X X Diagnostic laboratory submissions Case compatible sick pig submissions 1⁰ Commercial –Targeted high risk of dz X X X X Routine serology / herd profiles Commercial swine X Suspicious cases reported 1⁰ Commercial –Targeted high risk of dz X X X X X X High probability of exposure to feral swine Domestic swine –Targeted high risk of dz X X Suspected exposure to feral swine Domestic swine –Targeted high risk of dz X X On-Farm collections Waste feeding operations Domestic swine –Targeted high risk of dz X X X Designated high risk areas Domestic swine –Targeted high risk of dz X X Exposure to feral swine Domestic swine –Targeted high risk of dz X X Wildlife monitoring Opportunistic feral swine samples Feral swine- monitor disease reservoirs X X X X X X Targeted feral swine sampling Feral swine - in high dz risk areas X Enhanced Passive surveillance FSIS condemnation data 1⁰ Commercial X X X X X Practitioner observations Livestock market observations VDL syndromic submissions
  19. 19. Surveillance activities • Disease updates-previous slides • Planning for FAD surveillance • Non-regulatory surveillance and information. – Influenza A virus in swine. – PEDV information coordination 19 CISS- Collaborations to Achieve Results
  20. 20. CISS – Completed tasks • Initiated discussions on data standards with states. • Result reporting to stakeholders • Validated diagnostic methods (ASF, CSF, FMD, PRV) • Pilot project on utilizing Prem ID tags 20 CISS- Collaborations to Achieve Results
  21. 21. Completed tasks • Developed surveillance strategies for FMD, ASF surveillance pilots • Developed methods for sample collection, testing and data messaging including NAHLN network. – PEDV- receiving network data sharing from 12+NAHLN labs. (4,000 PEDV testing records every week from NAHLN labs.) 21 CISS- Collaborations to Achieve Results
  22. 22. Areas for improvement: • Consistency – State support on individual premises data sharing agreements varies. – Continued discussions among all parties in sharing premises information with VS • Testing efficiencies -targeting • Information technology infrastructure 22 CISS- Collaborations to Achieve Results
  23. 23. CISS -Conclusion • VS cannot implement CIS alone, nor can the States or industry. • CISS must operate as a unified system with participation and support from all stakeholders to be effective. • To date, access to needed premises data is missing. • All parties must reach consensus on ways to share premises identifiers. 23 CISS-Collaborations to Achieve Results
  24. 24. • VS-Next steps – Continue collaboration with stakeholders to enhance current surveillance structure – Enhance surveillance by adding future diseases of concern • Collaborate to overcome the next CISS data constrains 24 Collaborations to Achieve Results
  25. 25. • Risk Analyses – October, 2013 USAHA resolution seeking support and collaboration • Risk analyses regarding the introduction of diseases via production inputs sourced from outside US. 25 Other VS Activities
  26. 26. Other VS Activities • Pathway Assessment – VS has initiated a pathway assessment for exotic viral diseases of swine – The assessment is to determine whether significant gaps exist in commodities imported – VS is analyzing the likelihood of disease entering the country from a various pathways such as processing of feed materials, transport, equipment import mitigation procedures, etc. – VS plans sharing results with stakeholders 26
  27. 27. Questions?

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