For the record Bates County is NOT on the list. At least not yet.

The 12 new counties are: Barry, Benton, Cedar, Dade, Hickory, Ozark, Polk, St. Clair, St. Francois, Ste. Genevieve, Stone, and Taney.
The 12 new counties join these 29 existing counties of the Department’s CWD Management Zone: Adair, Boone, Callaway, Carroll, Chariton, Cole, Cooper, Crawford, Franklin, Gasconade, Jefferson, Knox, Linn, Livingston, Macon, Miller, Moniteau, Morgan, Osage, Putnam, Randolph, Schuyler, Scotland, Shelby, St. Charles, St. Louis, Sullivan, Warren, and Washington.
Missouri DNR states the main reason for banning feeding of deer is to decrease the transmission of disease, which is related to concentrated gatherings.
-courtesy Missouri Department of Conservation