Spread mostly by deer ticks, health officials suggest you check for the bugs after walking in areas where they hide.
Those areas shouldn't be limited to tall grass and woods, says Katherine Feldman from the Maryland Department of Public Health.
"Most Lyme disease is acquired around a person’s home," says Feldman. "So it's incredibly important that people protect themselves even when they’re in their backyard."
Feldman also says make sure pets are treated with repellent. That will protect them from getting ticks, and from bringing ticks inside the home.
If you find one, Feldman suggests removing the tick with tweezers while taking care not to crush it.