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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Veterinary Services Swine Surveillance

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Figure 2. Number of accessions with each IAV-S virus subtype present by month (FY10 through FY13)

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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?