WEST NILE VIRUS EPIDEMIOLOGY UPDATE Christopher Perkins, DO, MPH Dallas County Health and Human Services August 7, 2012
Feb 24, 2016
WEST NILE VIRUS EPIDEMIOLOGY
UPDATE
Christopher Perkins, DO, MPHDallas County Health and Human ServicesAugust 7, 2012
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
DCHHS Summary of Human Cases
(as of 5 pm 8/6/12)• 130 total cases: • 93 WNND (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
WNV Human Cases, Dallas County, 2003-2011
All human WNV illnesses are reportable as of 2004.
Distribution of Human WNV cases, Dallas County (130 patients, as of 8/6/2012)
Questions?