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The following maps show the progress of human cases of West Nile across the United States. States are colored according to the percentage of all U.S. West Nile cases they represented in that year. Zero percent (no cases) is colored white; less than 1% is blue; between 1% and 5% is green; between 5% and 10% is yellow, and greater than 10% of ...
Which MA towns are at high risk for West Nile virus and EEE? Two new cases reported. See the risk map
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.
After two more cases of West Nile in humans were announced Tuesday, Sept. 3, more communities across the state are being classified as high-risk. West Nile virus and EEE risk map Massachusetts ...
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 ...
A 2007 fatal case in a killer whale in Texas broadened the known host range of West Nile virus to include cetaceans. [ 33 ] Since the first North American cases in 1999, the virus has been reported throughout the United States, Canada, Mexico, the Caribbean, and Central America.
Symptoms and risks of West Nile Virus. The U.S. has recorded 659 cases in 43 states so far this year, according to the CDC, though the agency warns that is likely an undercount.
The states reporting the highest number of human cases of West Nile virus in 2024 are Texas, Nebraska, Nevada, Louisiana and Mississippi. The recent death reported in Dallas, Texas, was the sixth ...