Rickettsiosis caused by Rickettsia felis is an emerging infection in Africa and may account for 3-4% of ambulatory febrile fevers. We report herein a case of R. felis infection, for which we propose the name "yaaf", meaning vesicle, in an 8-month-old girl who was diagnosed in the field by real-time PCR analysis of a skin lesion; these PCR analysis was performed at a local experimental point-of-care laboratory. The clinical presentation was polymorphous skin lesions, including papules, vesicles, erosions and ulcers. The patient did not produce antibodies against Rickettsia. We suggest that this disease may be a primary infection caused by R. felis.
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