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Babesiosis is a potentially severe, and sometimes fatal tick-borne disease caused by an infection with a red blood cell parasite. A more severe and prolonged illness is more likely to be found in persons older than 60, those who have had their spleen removed, and those who are immunocompromised (e.g. persons with HIV infection or AIDS).
Babesiosis is sometimes fatal, especially in the elderly, those with compromised immune systems, and those who have had their spleens removed.
It spreads through the bite of infected ticks.
Reducing exposure to ticks is the best defense against Lyme disease, Rocky Mountain spotted fever, and other tickborne infections. There are several steps you and your family can take to prevent and control Lyme disease:
Most people in the US who become infected with babesiosis will experience no symptoms, but others could have fatigue, fever, malaise, jaundice, and anemia. Symptoms can last from several days to several months and usually appear 1-4 weeks after infection. In asymptomatic individuals, the disease typically goes away on its own.
In symptomatic people, babesiosis usually is diagnosed by examining blood specimens under a microscope and seeing Babesia parasites inside red blood cells. Other methods such as serology and molecular methods can also be used.
Babesiosis can be treated with antibiotics.