As of September 4, 2012, there have been 1,993 cases reported, according to the CDC. Of those, 87 resulted in death. Reports have come from 48 states, with Alaska and Hawaii being the only states with no reports. The majority of cases (about 70%) have come from 6 states: Texas, South Dakota, Mississippi, Oklahoma, Louisiana, and Michigan. Texas has been hit the worst, accounting for about half of all reported cases. They have reported over 1,000 cases with 40 deaths. In Georgia, the CDC reports that we've had 16 neuroinvasive cases, 6 non-neuroinvasive cases, and 3 deaths.
Of the almost 2,000 cases reported this year, 54% have been of the neuroinvasive form of West Nile Virus, which can lead to meningitis (inflammation of the tissue that surrounds the spinal cord and brain) and encephalitis (inflammation of the brain). A milder form is more common and often not reported. In fact, 80% of people infected with the virus will have no symptoms at all. When symptoms are present, people may experience flu-like symptoms such as fever, headache, body aches, nausea, vomiting, swollen lymph glands, or a rash on the chest, stomach and back. These symptoms generally last a few days to several weeks but pass on their own with no lasting effects. However, 1 in 150 people infected with West Nile Virus will have the serious form of the virus. Symptoms include high fever, headache, neck stiffness, disorientation, tremors, coma, muscle weakness, vision loss, numbness and paralysis. Sometimes these effects may be permanent and even result in death.
photo courtesy of Jim Gathany/CDC; wikipedia.org |
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