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Jule Hamrick caught West Nile in 2018 after a mosquito bit her in her backyard in Roswell, Georgia. - Courtesy Jule Hamrick ... The CDC keeps maps of where West Nile cases have been detected in ...
In 2023, 47 states reported West Nile cases; in total, there were more than 2,400 reported instances, though this was likely a significant undercount given the number of asymptomatic and mildly ...
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At total of 1,868 cases including 844 (45%) WNND (West Nile neuroinvasive disease) cases and 89 deaths (case-fatality rate 5%). Dates of onset ranged from May 1, 2012, through December 6, 2012. The outbreak peaked during week 33 (mid-August) with 225 reported cases, which is historically the same peak for all reported WNV cases in Texas during ...
The first cases of West Nile disease in the United States occurred in 1999 in New York. In the first three years only a small number of human cases were diagnosed, all in the Eastern or Southern U.S. (149 cases and 19 deaths, 1999–2001). In 2002, the disease exploded to most of the lower 48 states, causing 4,156 diagnosed cases of which 284 died.
A positive test for West Nile IgG in the absence of a positive West Nile IgM is indicative of a previous flavivirus infection and is not by itself evidence of an acute West Nile virus infection. [60] If cases of suspected West Nile virus infection, sera should be collected on both the acute and convalescent phases of the illness.
The CDC’s tally for West Nile cases this year is likely an undercount, since several states have reported additional human cases in recent weeks.
West Nile virus remains the leading mosquito-borne disease threat in the U.S. As of Aug. 22, 247 cases had been confirmed this year, with Arizona and Colorado reporting the most, according to the ...