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La Crosse Encephalitis
Human
2012
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La Crosse Encephalitis:  Montana - Human
[map image displaying counties that are labeled incident count]

La Crosse Encephalitis
has not been reported in Montana

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Valley County Flathead County Phillips County Lincoln County Glacier County Hill County Blaine County Daniels County Liberty County Toole County Sheridan County Roosevelt County Pondera County Chouteau County Sanders County Richland County Teton County McCone County Lake County Garfield County Lewis and Clark County Fergus County Dawson County Cascade County Missoula County Powell County Petroleum County Mineral County Judith Basin County Wibaux County Prairie County Meagher County Custer County Rosebud County Granite County Broadwater County Musselshell County Golden Valley County Wheatland County Fallon County Ravalli County Jefferson County Yellowstone County Treasure County Deer Lodge County Sweet Grass County Gallatin County Park County Silver Bow County Carter County Stillwater County Big Horn County Beaverhead County Madison County Powder River County Carbon County Navigate to Idaho page Navigate to North Dakota page Navigate to South Dakota page Navigate to Wyoming page
Map Scalebar 250 km
Cumulative 2012 Data as of 3 am, Dec 11, 2012*
These data are provisional and may be revised or adjusted in the future.
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Map Legend
* Data demonstrates local jurisdiction of residence and not necessarily the locale where the infection was acquired.
** States and counties in yellow are those in which virus activity has been reported historically, but no positive test results have been reported or no surveillance has occurred this year.