Most people exposed to the parasites behind babesiosis don't get sick, but for others, the infection can be deadly.

Typical symptoms of babesiosis include fever, chills, sweating, muscle aches and pains, as well as swelling of the liver and spleen and having a low level of red blood cells in the body.

INFECTIONS with the protozoon Babesia occur frequently in wild and domestic animals, but human beings are apparently very rarely affected. In the British Isles, cattle are the most commonly ...