Published in Medical Letter on the CDC and FDA, October 5th, 2003
West Nile virus is one of many pathogens belonging to the flavivirus group. Current methods of diagnosis involve testing antibodies against viral structural proteins, the main one being the E protein. Because the E protein is found in other flaviviruses such as dengue virus and St. Louis encephalitis, positive antibody E results are not a definitive diagnosis of West Nile virus. Therefore, additional testing is required to differentiate between the...
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