| increasing health burden of human babesiosis in endemic sites. | human infection due to babesia microti has been regarded as infrequent and a condition primarily affecting the elderly or immunocompromised. to determine whether risk in endemic sites may be increasing relative to that of borrelia burgdorferi and to define its age-related clinical spectrum, we carried out a 10-year community-based serosurvey and case finding study on block island, rhode island. less intensive observations were conducted in nearby sites. incidence of babesial infection on block i ... | 2003 | 12875292 |