In the Americas, Ixodes scapularis is the most common vector. This hard tick, commonly known as a deer tick, is also the vector for other tick-associated illnesses, such as Lyme disease. Many species of Babesia only infect nonhuman mammalian hosts, most commonly cattle, horses, and sheep.
Ixodes scapularis, a hard tick commonly known as a deer tick, is also a vector for other tick-related illnesses like Lyme disease. Babesia species primarily infect nonhuman mammals, most often cattle, horses, and sheep.