The Main Line's Battle Against Lyme Disease How area doctors and politicians are fighting the spread of Lyme disease due to deer ticks in Southeastern Pennsylvania. PLUS: Stats on the disease's local and state impact. Lyme Lives Here Doctors and lawmakers alike take a stand against this misunderstood disease permeating Southeastern Pennsylvania. Lyme by the Numbers Statistics on the tick-borne disease, as it affects Pennsylvania and the Main Line. Lyme Disease Resources Local, state and national organizations that exist to help.