August 30, 2002
Contact: CDC Press Office
(404) 6393286

Press Release

West Nile Virus Update

1. As of 3:00 PM (MDT), August 30, 2002 these are the human case totals for 2002 that have been reported to CDC/Arbonet or compiled in direct communication with state or local health officials:
   
   Total Laboratory Positive Human Cases
   
   

   Alabama	13
   Arkansas	3
   Connecticut	1
   District of Columbia	1
   Florida	1
   Georgia	6
   Illinois	122
   Indiana	10
   Iowa	1
   Kentucky	6
   Louisiana	205
   Maryland	2
   Massachusetts	1
   Michigan	21
   Minnesota	2
   Mississippi	104
   Missouri	27
   Nebraska	4
   New York	5
   North Dakota	3
   Ohio	35
   Oklahoma	2
   South Carolina	1
   South Dakota	5
   Tennessee	5
   Texas	43
   Virginia	3
   Wisconsin	6
   Total human cases:	638
   Total human fatalities: GA (2), IL (7), KY (1), LA (8), MI (2), MO (1), MS (3), NE (1), NY (1), OH (4), TX (1)	31

   
   
   
   The following human data are derived from cases (N=556) that have been reported and verified to CDC/Arbonet. Arbonet is the national, electronic surveillance system established by CDC to assist states in tracking West Nile and other mosquito-borne viruses.
   
   
   Demographic and onset data: the following data are available on 556 (99%) of 556 cases
   Median age: 51 years (range: 9 months 98 years)
   Gender distribution: 297 (54%) are male 
   Number of cases by month of onset:
         June: 16
         July: 189
         August: 346
   
   Fatalities (n=26):
         Median age: 76 years 
         Gender distribution: 15 (58%) are male 
         Age range: 48 94 years
   
   Clinical Manifestations (n=556):
   Meningo-encephalitis: 272
   Fever: 80
   Unknown: 204
   
   
   

2. As of 3:00 PM (MDT), August 30, 2002 these are the tallies for 2002 reported and verified to CDC/Arbonet:

   Total number of states/districts reporting any West Nile virus activity, 2002: 41 states + DC

   Avian

   • Total number of dead birds reported & verified, 2002: 5057
   • States/districts reporting dead birds, 2002:
     Alabama, Arkansas, Colorado, Connecticut, DC, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, West Virginia, Wisconsin, Wyoming

   Veterinary

   • Total number of veterinary cases (all equine) reported & verified: 998
   • States/districts reporting veterinary cases (# cases verified):
     Alabama (9), Arkansas (10), Colorado (20), Florida (51), Georgia (2), Iowa (26), Illinois (61), Indiana (56), Kansas (34), Kentucky (56), Louisiana (6), Minnesota (7), Mississippi (76), Montana (1), Nebraska (46), New Mexico (1), New York (3), North Dakota (175), Ohio (2), Oklahoma (1), Pennsylvania (2), South Dakota (177), Tennessee (1), Texas (159), Vermont (1), Virginia (2), Wyoming (13)

   Mosquito Pools

   • Total number of mosquito pools reported & verified as positive: 1808
   • States/districts reporting positive mosquito pools:
     Alabama, Connecticut, DC, Georgia, Illinois, Indiana, Kentucky, Maryland, Massachusetts, Mississippi, Nebraska, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, South Dakota, Texas, Virginia
   • Mosquito species pools reported positive:
     Aedes sp., Aedes albopictus, Aedes aegypti, Aedes vexans, Anopheles sp., Anopheles punctipennis, Anopheles quadrimaculatus, Coquillettidia perturbans, Culiseta inornata, Cx. sp., Cx. erraticus, Cx. pipiens, Cx. pipiens-restuans, Cx. quinquefasciatus, Cx. restuans, Cx. salinarius, Cx. tarsalis, Ochlerotatus cantator, Ochlerotatus japonicus, Ochlerotatus sollicitans, Ochlerotatus triseriatus, Ochlerotatus trivittatus, Psorophora ciliata, Psorophora columbia

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