A new study conducted by the CDC has found that blacklegged ticks are now present in 45 percent of the total number of counties in the United States. These insects are the most common carriers of the Borrelia bacteria, which can cause Lyme disease.
A new study conducted by the CDC has found that blacklegged ticks are now present in 45 percent of the total number of counties in the United States. These insects are the most common carriers of the Borrelia bacteria, which can cause Lyme disease.