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Medical News

JAMA. 1975;233(12):1245-1256. doi:10.1001/jama.1975.03260120007001.
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ABSTRACT

Mosquito-borne encephalitis appears in three areas of nation  Two forms of mosquitoborne encephalitis—western equine and St Louis—have appeared in epidemic proportions in three widely separated areas of the United States recently. The St Louis virus has caused serious outbreaks in Mississippi and Illinois, while the western equine virus has been infecting people in the Red River Valley area of Minnesota and North Dakota.According to the federal Center for Disease Control in Atlanta, Mississippi was hardest hit, with a total of 232 cases reported by early this month. Of these, 60 were confirmed serologically as St Louis encephalitis, and the rest were considered probable. There were 32 deaths, including five among the confirmed cases. Most of the patients came from the city of Greenville or near it.Earlier, North Dakota and Minnesota reported a total of 82 cases of acute febrile central nervous system disease. Most of these were

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