Editor’s note: Story updated April 18, 2023. The University of Maine Cooperative Extension Tick Lab is adding two new pathogens to its tick testing panels. The Tick Lab will now be screening ticks for Powassan virus and Heartland virus in addition to testing for the pathogens that cause Lyme disease, anaplasmosis, babesiosis, Rocky Mountain spotted read more UMaine Extension Tick Lab adds Powassan virus and Heartland virus to tick testing service