Table 1.
Year | Number of human cases | Deaths | Number of presumptive viremic blood donors |
---|---|---|---|
1999–2002 | 4,305 | 303 | NT |
2003 | 9,862 | 264 | 818 |
2004 | 2,539 | 100 | 224 |
2005 | 3,000 | 119 | 417 |
2006 | 4,269 | 177 | 361 |
2007 | 3,630 | 124 | 326 |
2008 | 1,356 | 44 | 174 |
2009 | 720 | 32 | 109 |
2010 | 1,021 | 57 | 117 |
2011 | 712 | 43 | 137 |
2012 | 5,674 | 286 | 597 |
2013 | 2,469 | 119 | 420 |
2014 | 2,205 | 97 | 344 |
2015 | 1,996 | 111 | 331 |
Total | 37,131 | 1,876 | 4,375 |
Including neuroinvasive disease (such as meningitis or encephalitis) and non-neuroinvasive disease (WN fever).
Source: CDC, accessed on December 30, 2015.