Year,2016,2017,2018,2019 Reported Tickborne Disease,Count,Count,Count,Count Lyme disease,"36,429","42,743","33,666","34,945" Anaplasmosis,"4,151","5,762","4,008","5,655" Spotted Fever Rickettsiosis,"4,269","6,248","5,544","5,207" Babesiosis,"1,910","2,368","2,160","2,420" Ehrlichia chaffeensis ehrlichiosis,"1,377","1,642","1,799","2,093" Tularemia,230,239,229,274 Undetermined ehrlichiosis/anaplasmosis,200,269,283,185 Ehrlichia ewingii ehrlichiosis,22,45,33,43 Powassan virus disease,22,34,21,43 Total,"48,610","59,350","47,743","50,865"