Ticks carry decades of history in each troublesome bite

When you think about ticks, you might picture nightmarish little parasites, stalking you on weekend hikes or afternoons in the park.

Your fear is well-founded. Tick-borne diseases are the most prevalent vector-borne diseases – those transmitted by living organisms – in the United States. Each tick feeds on multiple animals throughout its life, absorbing viruses and bacteria along the way and passing them on with its next bite. Some of those viruses and bacteria are harmful to…