USDA Swine Program Initiatives and Updates: Collaborations to A chieve Results Troy T. Bigelow
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Transcript of USDA Swine Program Initiatives and Updates: Collaborations to A chieve Results Troy T. Bigelow
USDA Swine Program Initiatives and Updates:
Collaborations to Achieve Results
Troy T. BigelowU.S. Department of Agriculture
Animal and Plant Health Inspection ServiceVeterinary Services
April 1, 2014
Veterinary Services
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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
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Veterinary Services Swine Surveillance Pseudorabies FY 13
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
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Total 276,742
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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)
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Hotspot Analysis
Slide provided by VS, STAS,CEAH
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• 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
Veterinary Services Swine Surveillance
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• Swine Brucellosis FY 13
– TAIO? – Collaborating industry on SB sample
reduction.– Implementing SB into NAHLN system
Veterinary Services Swine Surveillance
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• 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
Veterinary Services Swine Surveillance
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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
Veterinary Services Swine Surveillance (CSF)
Even with PEDV highlighting the importance of rapid detection, zero swine FAD’s were reported in FY13
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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
Veterinary Services Swine Surveillance
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Month Diagnostic sick domestic swine
submissions
Swine associated w/ public health
investigations
Sick pigs at concentration points
or commingling events
All Surveillance streams
AccessionsSamples
AccessionsSamples
AccessionsSamples 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
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Influenza A Virus in Swine
Veterinary Services Swine Surveillance
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• 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
PEDV Activities
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Map of States with Positive PEDV Biological Accessions
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• 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.
Collaborations to Achieve Results
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Data StreamTargeted Pathogen-Specific Surveillance Non-Pathogen
Populations CSFFMD ASF IAV-
SPRV SB Other Specific
SurveillanceHarvest (slaughter) surveillance
Market swine 1⁰ Commercial-growers & finishers
/porkX 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
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Surveillance activities• Disease updates-previous slides • Planning for FAD surveillance • Non-regulatory surveillance and
information. – Influenza A virus in swine. – PEDV information coordination
CISS- Collaborations to Achieve Results
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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
CISS- Collaborations to Achieve Results
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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.)
CISS- Collaborations to Achieve Results
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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
CISS- Collaborations to Achieve Results
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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.
CISS-Collaborations to Achieve Results
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• 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
Collaborations to Achieve Results
• Risk Analyses– October, 2013 USAHA resolution seeking
support and collaboration • Risk analyses regarding the introduction of
diseases via production inputs sourced from outside US.
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Other VS Activities
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
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Questions?