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West Nile Encephalitis in Louisiana 2002

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... collect and report dead birds: particularly crows, blue jays and birds of prey ... Public Health keeps track of results of birds and mosquitoes and warns mosquito ... – PowerPoint PPT presentation

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Title: West Nile Encephalitis in Louisiana 2002


1
West Nile Encephalitis in Louisiana 2002
  • Infectious Disease Epidemiology Section
  • Office of Public Health
  • Louisiana Dept of Health Hospitals
  • ...Your Taxes at Work
  • 504-568-5005 or 1-800-256-2748

2
Objectives
  • At the end of the session
  • ? The listener
  • ? Will understand the lumpy and wavy
  • distribution of WNV in Louisiana
  • ? Will not understand the reasons
  • for the lumps and waves
  • ? The sleeper will have had a good rest

3
Fightthebite Campaign
4
2001 WNV comes to Louisiana
5
West Nile Virus 2001
Bird
Horse
Human
7 Vermillion 1 Calcasieu 1 Iberia 1 Plaquemine 7
Jefferson
1
1
7
1
6
1
6
2002 WNV Epidemic
7
Epidemic Curve
8
Epidemic Curve
9
Meningoencephalitis Reported Rates
10
Geographical Distribution of Cases
11
Meningoencephalitis Reported Rates
12
WNV-ME Regions 1-2-9
13
WNV-ME Baton Rouge
14
WNV-ME Slidell
15
Temporo-spatial Trend
16
Temporo-spatial Trend
17
Temporo-spatial Trend for selected Parishes
18
Clinical Presentation of Reported Cases
19
Incidence by Age Group All Cases
20
Incidence by Age Group ME
21
Fatality Rate by Age Group
22
Meningoencephalitis fatalities
  • 24 deaths among meningoencephalitis cases
  • Case-fatality rate 11.8 (24/204)
  • 8 females, 16 males

23
Early warning system
  • People collect and report dead birds
    particularly crows, blue jays and birds of prey
  • Local mosquito control traps mosquitoes
  • Public health transport specimens
  • LSU Veterinary labs tests birds and mosquitoes
  • Public Health keeps track of results of birds and
    mosquitoes and warns mosquito control and the
    public.

24
Early Warning System
25
Fightthebite Campaign
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