Link between deer and Lyme Disease

The bacterium that causes the Lyme infection is typically transmitted to humans via deer tick nymphs that have fed on infected small mammals such as mice. The deer play a key role in the life cycle of the deer tick (black-legged tick).

Check the Lyme disease entries on and consider the State of Michigan’s statement on Emerging Diseases at,4579,7-186-25890-75872–,00.html

“Deer supply the tick that transmits the bacterium with a place to mate and provides a blood meal for the female tick prior to production of eggs. Research shows that reducing the deer population in an affected area to a level of 8 – 12 deer per square mile virtually eliminates ticks and Lyme Disease in humans.”

White Buffalo, as a credible source, wrote a piece about about Lyme disease, here, which cites Bernd Blossey, a principal author of the Cornell Study:
Lyme Disease and Deer: The Connection is Clear: Oct. 10, 2014!Lyme-Disease-and-Deer-The-Connection-is-Clear/cw92/898F2DF2-63AB-41D8-83C0-533A2A06C85C

“There are 3 important new papers out that shed light on the discussion about deer, ticks and Lyme disease. For the longest time, the link between Lyme disease and deer has been in dispute in the scientific literature and obviously in the public. Despite some encouraging news from islands where deer population declines or eradication resulted in disappearance of Lyme disease, the debate centered on the role of mammals, particularly mice and chipmunks, and mesopredators (foxes, skunks, coyotes etc.) etc. With these 3 new papers (see references and abstracts below), I can now confidently stand up and tell everyone who wants to listen that the link between deer abundance, tick abundance, incidence of Borelliosis in the ticks, and Lyme disease incidence in humans has a direct link. These papers are from CT, Thousand Islands Region in Canada and Indiana. They use very different methods, but all come to the same conclusions.”

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