A CDC spokesperson told Newsweek that "the number of babesiosis cases reported each year has increased over time."

The CDC says this is one of the worst tick seasons in recent years, with more than 229 out of every 100,000 ER visits involving tick bites — up from 167 patients last year — increasing the potential for victims to acquire Lyme disease.

Emergency room visits for tick bites are at a six-year high. Here’s how to prevent tick bites, and what to do if you get bitten.