From the article: Lyme Disease Is On The Rise Again; Here’s How To Prevent It
Black-legged ticks are small — the nymphs can be as little as the head of a pin, making them tough to spot.Black-legged ticks are small — the nymphs can be as little as the head of a pin, making them tough to spot.
The tick-borne illness is spreading north and south — about 300,000 U.S. cases a year. As scientists work on better diagnostic tests and surveillance tools, you can take steps to cut your risk.