From the New York Times: A Natural Cure for Lyme Disease.
If humans have inadvertently increased the chances of contracting Lyme disease, the good news is that there’s a potential fix: allow large predators, particularly wolves and cougars, to return.
They would help keep down the number of deer, which, although they don’t carry the Lyme-causing bacterium, probably encourage its transmission. [continue]
If you missed it a couple of weeks ago, take a detour over to the how wolves change rivers thing I pointed out. The four-minute video is stunning.