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Alberta Veterinary Surveillance Network E ffective and progressive network of veterinary food animal practices that will serve as the foundation for animal health surveillance in Alberta. John Berezowski Food Safety Division Alberta Agriculture Food and Rural Development. Key Results.
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Alberta Veterinary Surveillance NetworkEffective and progressive network of veterinary food animal practices that will serve as the foundation for animal health surveillance in Alberta John Berezowski Food Safety Division Alberta Agriculture Food and Rural Development
Key Results • A strategic system to collect real time data and disseminate animal health information on an ongoing and timely basis. (for the mutual benefit of veterinarians, industry, government) • Access to Alberta livestock and poultry for targeted surveillance, research and food safety programs. • Document a valid veterinary infrastructure in Alberta
Objectives • Detect emerging (+/- foreign) diseases • Estimate herd prevalence of diseases: • Zoonotic, food safety, market access • Important to veterinarians, industry, public • Establish freedom from disease • Important for trade • Monitor disease trends • Spatial and/or temporal • Impact of control programs • Relationship with AVMA/practitioners • Essential for animal health surveillance
Unique Attributes • AVSN will provide something that no other surveillance effort in Alberta Agriculture has: • Real or Near-Real time: • Systematic collection and analysis of data from several varied surveillance sources for: • Identification and investigation/response to important livestock health events And • Production and communication of information/knowledge about the health and disease status of Alberta livestock and poultry • Emphasis: Integrated real-rime approach to data analysis, event detection and information production and reporting
Definition of surveillance “Ongoing, systematic and adaptable collection, analysis, interpretation and dissemination of data about health, diseases and their determinants in a population with the purpose of responding to changes in the populations health or disease status”
Definition of surveillance • “Ongoing, systematic and adaptable collection, analysis, interpretation and dissemination of data about health, diseases and their determinants in a population with the purpose of responding to changes in the populations health or disease status” • Dz/event identification • Response • Communication
Identification • Data collection/monitoring surveillance • Event detection and/or data collection for reports • Continuous • Syndromic, Dx labs, practitioners • Single and/or repeated • Surveys, questionnaires, research • No data collection surveillance • Reportable disease programs • Meat inspection
Response • Investigate • Gather more data/information • “Drill down” • On farm disease investigations • Dx tests, Dx pathology etc • Control/eradication procedures • Quarantine, stamping out etc
Communication • Notification • Notify the responding agency/group • Suspect reportable dz • Reporting • Produce information/knowledge from the data • Disseminate to stakeholders
AVSN - Identification • Data collection surveillance • Continuous (near-real time event detection) • Veterinary Practice Surveillance (VPS) • Targeted and non-targeted surveillance • BSE surveillance (CABSEP) (text mining/AI) • Diagnostic laboratories (text mining/AI) • (Livestock movements?) • Single and/or repeated • Targeted surveillance, surveys, questionnaires, research • Outbreak/event investigation • Integrated approach • Combine data from many sources • Detect events, produce information/knowledge
AVSN - Identification • Non data collection surveillance • Chief Provincial Vet (CPV), AB Practitioners, Others • Suspect emerging or reportable • Meat inspection in provincial plants • Unusual inspections
ASVN - Response • Investigate • Gather more data/information • “Drill down” • On farm disease investigations • Livestock Disease Investigation Network (LDIN) • Livestock Pathology Consultation Program (LPCP) • Resolve the Dz problem • Within AAFRD Mandate • Assist industry/producer/practitioner with control/ eradication/mitigation • Outside AAFRD mandate • Industry, WCVM, U of C, others
AVSN - Communication • Notification • Suspect emerging Dz • LDIN, LPCP • Industry, CPV, WCVM/U of C, other stakeholders • Suspect reportable dz • CFIA, OCPV • Reporting • Produce information/knowledge from the data • Disseminate to stakeholders
Detection Response Communication
Detection Response Communication No Data CPV Pract Meat Insp Analyze Data VPS BSE Targeted Surv Research/Survey U of C PDS Other
Detection Response Communication Investigate No Data Drill Down CPV Pract LPCP LDIN Meat Insp Resolve Analyze AVSN Team Data WCVM U of C VPS BSE Other Targeted Surv Research/Survey U of C PDS Other
Detection Response Communication Investigate Notify Report No Data Drill Down CFIA CPV CPV Pract LPCP LDIN CPV CFIA Meat Insp Others Industry Resolve Analyze Others AVSN Team Data WCVM U of C VPS BSE Other Targeted Surv Research/Survey U of C PDS Other
Detection Response Communication Investigate Notify Report No Data Drill Down CFIA CPV CPV Pract LPCP LDIN CPV CFIA Meat Insp Others Industry Resolve Analyze Others AVSN Team Data WCVM U of C VPS BSE Other Targeted Surv Research/Survey U of C PDS Other
Detection Response Communication Investigate Notify Report No Data Drill Down CFIA CPV CPV Pract LPCP LDIN CPV CFIA Meat Insp Others Industry Resolve Analyze Others AVSN Team LPCP LDIN VPS TS Data WCVM U of C VPS BSE Other Targeted Surv Research/Survey U of C PDS Other
Livestock Pathology Consultation Program • Dz event meets criteria • Dx workup • Food safety, market access, provincially reportable, significant mortality, unusual presentation, emerging disease • Investigation • Consultation with pathologist • Pathology • In collaboration with practitioner • Available to all AB practitioners
Livestock Dz Investigation Network • Dz event meets criteria • Dx workup • Food safety, market access, provincially reportable dz, emerging disease, public health/zoonotic • Investigation • by reporting veterinarian • By FSD staff • In collaboration with practitioner • Available to all AB practitioners
Veterinary Practice Surveillance • Electronic surveillance system • Practitioners report via a website • Data stored/analyzed in central database • Important events identified/investigated • Information/knowledge reported
VPS - Why Practitioners • Broad coverage of populations • Rapid disease detection (near real time) • Continuous detection and reporting • Access to livestock populations • Targeted surveillance • Control programs • Becoming accustomed to surveillance • BSE surveillance • Practices computerized • Technology available
VPS - Data collected • Tombstone data • Location, date, number on farm • Commodity, age • Disease related • Number sick, dead • Syndrome (12), clinical dx, laboratory dx • Syndrome related questions • Non-disease related • Estimate the number of farms and cattle
VPS - Species • Poultry • Under development • Collect syndromic data 2006 • Swine • Begin 2006/7 • Cattle: • Collecting data • Began enrolling cattle practitioners: Aug 2005 • 30 practices enrolled • Practice locations match distribution of cattle • Continued development
Population Under SurveillanceAug 1st to Dec 31st 2005 • 2,203 Operations (74/practice) • 982,448 Cattle • 6,715 Submissions • 63 Counties covered
Population Under Surveillance Operations Cattle Average Cow-Calf 1856 435,221 234 Dairy 220 47,011 214 Bckgrnd 27 17,600 652 Feedlot 100 482,600 4,826
Submissions per farm Submissions Farms Ratio Cow Calf 3335 1856 1.8 Dairy 1601 220 7.3 Bckgrnd 46 27 1.7 Feedlot 1733 100 17.3
Submissions per animal Submission/animal Cow Calf 1/130 Dairy 1/30 Bckgrnd 1/382 Feedlot 1/278
VPS: Aug 1 – Dec31 Clinical Dx: BVD Operations Lab Dx Cowcalf 7/1856 7 Dairy 1/220 1 Bckgrounder 1/27 1 Feedlot 13/100 3
VPS: Aug 1 – Dec 31 Dx:Unknown/Undifferentiated Submissions Lab Dx Cow Calf 333 10 Dairy 86 20 Feedlot 210 2
VPS - Targeted surveillance • Rapid access to many farms/cattle • Targets specific dz syndromes • Represent important dz • Eligible cases are defined • ie. >30 months, neuro, undifferentiated • Practitioner submits samples to FSD • PM samples for histo and ancillary testing • Other screening tests: serology, culture and sensitivity • Easy to modify: driven by VPS web page
Neuro/rec: undifferentiated • Total number 70 • Diagnostic tests 0 • BSE tested 57 • BSE neg, but why did they die? • Candidates for targeted surveillance
Johne’s SuspectsTargeted Surveillance? • GI over 30 months with diarrhea Farms Dx Johne’s dx 70 8 Undifferentiated 38 9 Total 108 17
Nora Abercrombie Colleen Annett Lynn Becker Dave Buchanan Jan Bystrom Sylvia Checkley Ron Clarke Sandy Clarke Kent Fenton Melissa McLaws Brian Miller Jagdish Patel Clarissa Snyder Tim Yuan Questions?Our Team