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

The parasites known to cause babesiosis are shown here infecting red blood cells under the microscope. | Credit: Smith Collection/Gado / Contributor via Getty Images Typical symptoms of babesiosis ...

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 ...