List of West Nile virus outbreaks

Global distribution of West Nile virus.(2006)
In the 2003 outbreak, 9,862 cases and 264 deaths were reported by the CDC. At least 30% of those cases were considered severe, involving meningitis or encephalitis. In 2004, only 2,539 cases and 100 deaths were reported. In 2005, there was a slight increase in the number of cases, with 3,000 cases and 119 deaths reported. Cases increased in 2006, with 4,269 cases and 177 deaths. In 2007, the number of cases reported decreased to 3,623 and the number of deaths dropped to 124. In 2007, 1,227 cases of WNV neuroinvasion disease and 117 deaths occurred.[2]
In 2008, West Nile surveillance data reported to CDC, a total of 28 states have reported 236 cases of human WNV illness. A total of 137 cases for which such data were available occurred in males, median age patients was 48 years. Dates of illness onset ranged from January 17 to August 14: Two cases were fatal.[3]
In 2009, 663 cases were reported; of these, 335 were encephalitis or meningitis infections, a reaction to the virus that approximately one in 150 people who get the virus will show. Three hundred and two cases were filed for West Nile fever, the most likely symptom of the virus; 26 cases were unspecified. The state of Texas had the most cases, with 104 total. The total mortality rate for 2009 was 32 deaths of the 663 reported serious cases, a 4.5% casualty rate, but only of the severe infections. Approximately 80% of cases have no symptoms, so the total casualty rate would be less than 1% of total infections in the U.S. These and earlier years data are available from the Centers for Disease Control and Prevention.[4]
Dallas County, Texas health officials announced in the second week of August 2012 a death toll of nine so far in the county. County Judge Clay Jenkins declared a public health emergency for the county on August 9, 2012, due to the West Nile virus outbreak in the area.[5][6] North Texas has been hit the hardest in 2012, with approximately 663 human cases and 18 deaths, as of August 23, 2012. During the same time, the CDC reported 1,118 human cases and 41 deaths nationwide.[7]

References

  1. CDC: West Nile Virus - Statistics, Surveillance, and Control
  2. CDC: West Nile Virus - Statistics, Surveillance, and Control
  3. CDC: West Nile Virus - Statistics, Surveillance, and Control
  4. CDC: West Nile Virus - Statistics, Surveillance, and Control
  5. "Dallas County declares state of emergency due to West Nile". WFAA.com. Retrieved 10 August 2012.
  6. Correll, Robin. "Epidemic of West Nile Virus Hits Dallas County". The Disease Daily. Retrieved 10 August 2012.
  7. "West Nile risk likely to run six more weeks, CDC says". Dallas Morning News. Retrieved 23 August 2012.
  8. Province of Manitoba | Manitoba Health | West Nile virus
  9. Error
  10. CTV.ca | Sask. reports 339 cases of West Nile, one death
  11. News | West Nile virus found in BC mosquitoes
  12. Chowers, MY; Lang R, Nassar F, Ben-David D, Giladi M, Rubinshtein E, Itzhaki A, Mishal J, Siegman-Igra Y, Kitzes R, Pick N, Landau Z, Wolf D, Bin H, Mendelson E, Pitlik SD, Weinberger M (Jul–Aug 2001). "Clinical characteristics of the West Nile fever outbreak, Israel, 2000". Emerging Infectious Diseases 7 (4): 675–8. doi:10.3201/eid0704.010414. PMC 2631759. PMID 11585531. Retrieved 2006-06-07. Cite uses deprecated parameter |coauthors= (help)
  13. "3 dead from West Nile virus in Romania". cnn.com. 2010-09-13. Retrieved 2010-12-21.
  14. "Έκθεση: Επιδημία Λοίμωξης από τον Ιό του Δυτικού Νείλου, 2010" (PDF) (in Greek). Hellenic Centre for Disease Control and Prevention (KEELPNO). 2011. Retrieved 2012-08-09.
  15. "Έκθεση επιδημιολογικής επιτήρησης - Έτος 2011" (PDF). Hellenic Centre for Disease Control and Prevention (KEELPNO). 2012-05-07. Retrieved 2012-07-10.
  16. "Και τρίτος νεκρός από τον ιό του Δυτικού Νείλου" (in Greek). in.gr. 2012-08-08. Retrieved 2012-08-08.
  17. "1800 άνθρωποι μολύνθηκαν από τον ιό του Δυτικού Νείλου στην Ελλάδα" (in Greek). Rodos Info News. 2012-07-24. Retrieved 2013-07-22.
  18. "Στα 35 τα επιβεβαιωμένα κρούσματα - Πρώτος θάνατος από τον ιό του Δυτικού Νείλου στην Ελλάδα για το 2013" (in Greek). in.gr. 2013-08-21. Retrieved 2013-08-21.
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