Transcript West Nile Virus - Bakersfield College

West Nile Virus
By Breanne Oscars &
Cara Weese
Symptoms
 80% - show no symptoms
 <20% - develop West Nile Fever
 <1% - develop West Nile Encephalitis,
Meningitis, & Poliomyelitis
People at higher risk for
Contracting West Nile
 * People over 50 years of age
 *Immunosuppressed Patients
Serious Cases of West
Nile
 Encephalitis- Inflammation of the brain
(http://www.answers.com/topic/encephalitis?method=8)
 Meningitis- Inflammation of the meninges
of the brain and the spinal cord
(http://www.answers.com/meningitis)
 Poliomyelitis- refers to an inflammation of
the spinal cord
(http://www.cdc.gov/ncidod.dvbid/westnile/qa/symptoms.htm)
TRANSMISSION
DIAGNOSIS
 *IgM Antibodies are tested for in blood or CSF
 *PRNT (Plaque Reduction Neutralization Test) may need to be
done to Confirm WNV.
 A week or longer is needed to give PRNT results.
 PRNT results are always needed in order for CDC to
considers it a human WNV
TREATMENT
 Mild Case Alleviate symptoms
 Severe Case
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Hospitalization
IV Fluids
Respiratory Support
Prevention of further infection
PREVENTION
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Apply DEET repellent to skin and clothing
Long Sleeved clothing
Remove breeding grounds
No vaccine for humans
January
st
1
– November
2005
st
1
 Cases reported this year: 2581
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West Nile Fever: 1053 (41%)
Meningitis or Encephalitis: 1363 (53%)
Deaths: 83 (3%)
Not all cases are reported
Asymptomatic patients are not included in
the data
http://www.cdc.gov/ncidod/dvbid/westnile/surv&controlCaseCount05_det
ailed.htm
Dealing with Dead Birds
 Remove Bird Safely and Cautiously
 CONTACT A PUBLIC HEALTH
OFFICIAL IF A DEAD BIRD IS
DISCOVERED IN YOUR AREA