LaCrosse Encephalitis Statistics
- LaCrosse encephalitis is found in southeastern Minnesota, especially
in counties along the Mississippi River.
- The first case ever reported was in the early 1960’s in a Houston
County, MN resident. The child died in a LaCrosse, Wisconsin hospital,
and the disease was subsequently named after this city. The Twin Cities
area has been the furthest north and west that LaCrosse encephalitis
virus has been found.
- Similar to other arboviruses, most LaCrosse encephalitis cases occur
later in the summer when infected vector populations are at their highest
Cases of LaCrosse Encephalitis by County of Residence and Date of Onset, Minnesota, 1985-2007
(PDF: 36KB/2 pages)
Graphs of reported cases of LaCrosse encephalitis by county of residence and date of onset.
- Reported Cases of LaCrosse Encephalitis by County of Residence and Date of Onset, Minnesota, 1985-2007 (PDF: 36KB/2 pages)
See also: Mosquito-Transmitted Disease Statistics