Volume 11, Number 8—August 2005
Perspective
Epidemiology and Transmission Dynamics of West Nile Virus Disease
Table 1
Human West Nile virus disease cases by clinical syndrome, United States, 1999–2004*
Year | Total cases | Neuroinvasive cases | West Nile fever cases | Other clinical /unspecified | Deaths |
---|---|---|---|---|---|
1999 | 62 | 59 | 3 | 0 | 7 |
2000 | 21 | 19 | 2 | 0 | 2 |
2001 | 66 | 64 | 2 | 0 | 9 |
2002 | 4,156 | 2,946 | 1,162 | 48 | 284 |
2003 | 9,862 | 2,866 | 6,830 | 166 | 264 |
2004* |
2,539 |
1,142 |
1,269 |
128 |
100 |
Total | 16,706 | 7,096 | 9,268 | 342 | 666 |
*Reported to the Centers for Disease Control and Prevention as of June 8, 2005.