Broad Antimicrobial Resistance in a Case of Relapsing Babesiosis Successfully Treated With Tafenoquine.

Rogers, Ralph; Krause, Peter J; Norris, Ashlyn M; Ting, Michelle H; Nagami, Ellen H; Cilley, Brian; Vannier, Edouard · Clin Infect Dis · 2023

case_report · Level V

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Abstract

We describe a case of relapsing babesiosis in an immunocompromised patient. A point mutation in the Babesia microti 23S rRNA gene predicted resistance to azithromycin and clindamycin, whereas an amino acid change in the parasite cytochrome b predicted resistance to atovaquone. Following initiation of tafenoquine, symptoms and parasitemia resolved.

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