The 4DX test, commonly known as a heartworm test, tests for 3 tick borne diseases, Ehrlichia, Lyme, and Anaplasmosis, in addition to heartworm. These maps represent the prevalence of these 4 diseases in Southwestern Ontario. The prevalence is determined through veterinary reporting and is likely higher than we know. You can check the prevalence in other areas of North America by using the “Diseases in Your Area” interactive map provided by dogsandticks.com
Anaplasma
Lyme
Heartworm
Ehrlichia