Download
avian influenza testing in birds in california n.
Skip this Video
Loading SlideShow in 5 Seconds..
Avian Influenza Testing In Birds in California PowerPoint Presentation
Download Presentation
Avian Influenza Testing In Birds in California

Avian Influenza Testing In Birds in California

276 Views Download Presentation
Download Presentation

Avian Influenza Testing In Birds in California

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Avian Influenza Testing In Birds in California Ben Sun, DVM, MPVM 916-552-9740 bsun@dhs.ca.gov California Department of Health Services

  2. Ecology and Epidemiology Key: Exposure to Domestic Waterfowl LPAIV Exposure Adaptation Asian H5N1 HPAIV Re-adaptation HPAIV (H5/H7) HA Mutation LPAIV (H1-16)

  3. California Avian Sub-Populations Commercial Broilers Commercial Turkeys Commercial Layers Custom Slaughter Commercial Game Birds Socialization Feed Stores SPF/Research Proximity Pet Stores Commercial Ducks Shows Auctions Wild Birds Backyard/Hobby Swap Meets Exotic Birds Game Fowl Pet Birds

  4. Laboratories Testing for AI in CA • 1. California Animal Health and Food Safety Lab (CAHFS) – Primary veterinary lab system statewide under CDFA • Private Poultry Industry – Screening tests in-house using AGID, forward positive samples to CAHFS for characterization • San Diego County Agriculture Dept. – Limited testing of all avian species in County Vet lab • UC Davis Researcher – Dr. Carol Cardona who is also testing some wild birds for the UCD Wildlife Health Center project

  5. CAHFS Laboratory Locationshttp://cahfs.ucdavis.edu/

  6. Low Path AI in CA

  7. AI Testing in California (January-June, 2005) Source: D. Rolfe, CAHFS 1 lab accession may represent 1-100 birds Approx 25,000 birds tested

  8. Wild Bird Issues • Very few wild birds being tested • Future plans nationwide for a coordinated wild bird surveillance system (USDA) • Further info on HPAI H5N1 in wild birds and recommendations for handling wild birds at USGS website • http://www.nwhc.usgs.gov/research/WHB/WHB_05_03.html • http://www.nwhc.usgs.gov/research/avian_influenza/HPAI082005.pdf

  9. Poultry Issues • Coordinating notification and response with CDFA • Occupational health concerns for poultry workers • Contact your local CDFA district office • http://www.cdc.gov/flu/avian/professional/protect-guid.htm • http://www.osha.gov/dsg/guidance/avian-flu.html • http://www.osha.gov/dts/shib/shib121304.html

  10. CDFA District Officeshttp://www.cdfa.ca.gov/ahfss/ah/offices.htm

  11. Conclusions • Wild birds are genetic reservoirs of all AI virus genes which are genetically very diverse • LPAIV maintained in wildbirds, and must be adapted to pass to domestic poultry • HPAIV arise in poultry and historically have not gone back to wild birds • Asian H5N1 HPAIV has readapted to some wild bird species creating a new mechanism of spread • Asian poultry production is very different than USA and poses different risks for HPAI introduction and maintenance • Comprehensive surveillance and early detection and response are key to minimizing the impact of HPAI in animals and humans • 7. Planning, communication, and coordination must continue to increase our preparedness for HPAI and possible pandemic