Human babesiosis in Europe is caused by multiple zoonotic species. We describe a case in a splenectomized patient, in which a routine Babesia divergens PCR result was negative. A universal Babesia spp. PCR yielded a positive result and enabled classification of the parasite into the less-described Babesia crassa-like complex.
Keywords: Babesia; Babesia crassa; France; PCR; immunocompromised patient; phylogenetic; tickborne diseases; vector-borne diseases; zoonotic disease.