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West Nile Virus Epidemiology Update

West Nile Virus Epidemiology Update. Christopher Perkins, DO, M PH Dallas County Health and Human Services August 7, 2012. Timeline of Events. 5/24: Seasonal WNV DCHHS press conference 6/5: 1 st confirmed +mosquito pool, from 5/30; Health Advisory issued

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West Nile Virus Epidemiology Update

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  1. West Nile Virus Epidemiology Update Christopher Perkins, DO, MPH Dallas County Health and Human Services August 7, 2012

  2. Timeline of Events • 5/24: Seasonal WNV DCHHS press conference • 6/5: 1st confirmed +mosquito pool, from 5/30; Health Advisory issued • 6/20: 1st confirmed human report (57yo WNND); 2nd WNV press conference held • 7/9: Total 10 WNV cases • 7/13: 1st report death; 3rd press conference • 7/19: 2nd death reported; 4th press conference • 7/23: Total 36 WNV cases • 7/25: Total 64 cases; 2nd WNV Health Advisory • 8/2: Total 115 cases; 3rd WNV Health Advisory

  3. DCHHS Summary of Human Cases (as of 5 pm 8/6/12) • 130 total cases: • 93WNND (72%) + 37 WNF (28%) • WNND: 69% >50 yrs age; 68% male • 92% hospitalized; 7 deaths • 46% of WNND hospitalizations--ICU admissions • 60% White, 26% Hispanic, 6% Black, 3% Asian, 5% Unknown • WNF: 61% >50 yrs age; 42% male • 23% hospitalized • 80% of all WNV cases reside in northern half of Dallas County

  4. WNV Human Cases, Dallas County, 2003-2011 All human WNV illnesses are reportable as of 2004.

  5. Distribution of Human WNV cases, Dallas County (130 patients, as of 8/6/2012)

  6. Questions?

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