Researchers are seeking thousands of volunteers in the U.S. and Europe to test the first potential vaccine against Lyme disease in 20 years in hopes of finding a better way to fight the tick-borne threat.
Lyme disease, caused by bacteria entering the body through the bite of an infected tick, is a growing problem, with reports of case numbers rising and warming weather helping ticks expand their habitat.
While a vaccine for dogs has long been available, the only Lyme disease vaccine for humans was pulled from the U.S. market in 2002 due to lack of demand, leaving people to rely on bug spray and tick checks.
