What are the demographics of babesiosis?

Updated: Apr 01, 2021
  • Author: Rachel E Strength, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Although persons of any age can be affected by babesiosis, clinically ill patients with intact spleens are usually aged 50 years or older, suggesting that age plays a factor in the severity of disease. Patients with babesiosis who were previously healthy individuals are generally older (mean, >60 years) than those who had previous medical problems (mean, 48 years). Vannier et al. suggested that the age-associated decline in resistance to B. microti is genetically determined. [1, 2]

Babesiosis has no known predilection for sex or race.

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