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					Surveillance in 2004

 Michelle Korth, MSPH
 Office of Epidemiology
Utah Department of Health

          February 2004
        Surveillance Activities
• Dead bird surveillance May 15 – October 15
  – Corvids and raptors
  – Oral swab
  – Activity established – cease testing @ UDOH lab
• Mosquito trapping May 31 – September 20
  – Culex pipiens, Culex tarsalis (target species)
  – WNV, SLE, WEE
       Surveillance Activities
• Sentinel chicken testing June 7 – September 20
  – WNV, SLE, WEE
• Equine surveillance: year-round
  – Veterinarian reporting of illness
  – Testing available at Utah Veterinary Diagnostic
    Lab
       Surveillance Activities
• Passive human surveillance: year-round
  – Physician/laboratory reports
     • Testing available at UDOH lab and other
       commercial labs
     • All syndromes – fever, meningitis, encephalitis, and
       acute flaccid paralysis
  – Syndromic surveillance – RODS
       Surveillance Activities
• Active human surveillance June - October
  – Laboratory evaluation of CNS illness (LPs
    ordered)
  – Weekly contact of hospitals through LHDs
  – Pregnancy risk study
  – Blood donor screening
  – Pediatric study
  – Organ transplant
            Surveillance results
• How results are communicated:
   – Positive tests reported from testing lab to state agencies
   – State agencies report to local health districts
• How are results available?
   – Through local health department
   – UDOH West Nile virus website
      • www.health.utah.gov/wnv
      • Updated Fridays at beginning of transmission season
             Surveillance results
• UDOH WNV website content
  – Surveillance tables/graphs
       • Map of all cases
       • Species-specific map of numerator and denominator data
         (equine, bird, chicken, mosquito)
       • Table of all WNV activity by county
       • Graph of human data by MMWR week
       • Table of human morbidity by syndrome and county
  –   Dead bird call-in form
  –   FAQ sheet
  –   Background info
  –   Risk level evaluated on weekly basis and messages
      prepared & distributed accordingly
                     Education
• Education of health care providers and
  veterinarians is critical
  –   To recognize signs and symptoms
  –   To institute diagnostic testing
  –   To send appropriate diagnostic samples
  –   To remember to consider other causes of
      similarly presenting illnesses
       • Other public health and animal health concerns are
         out there!
                   Education
• Public education is critical
  – State-wide information hotline
  – Messages
     • Personal protection and prevention
     • The risk for serious harm from WNV is low, but
       mosquito prevention can reduce that risk
     • Fight the Bite campaign
        Evaluation Activities
• Behavioral Risk Factor Surveillance System
  (BRFSS) survey
  – Evaluate 2003 “Fight the Bite” campaign
     • January – March 2004
     • Revise 2004 campaign
  – Evaluate 2004
     • October – December 2004
  – 1,250 surveys administered/evaluation
Questions?

				
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posted:10/29/2011
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