Add Yahoo as a preferred source to see more of our stories on Google. You spent some time outside, and then discovered a bug on your leg. What is it? And should you be concerned? It's estimated that ...

New tick-borne bacteria discovered in dogs in the US, Rickettsia finnyi, is very similar to canine spotted fever.

After that second meal, the tick molts again and becomes an adult. Adult ticks are most active in the fall and again in early spring when temperatures rise above freezing. At this stage they often ...

Here's what medical experts want you to know about spotting ticks, treating tick bites and working to prevent coming into contact with one.