Picture of Rickettsialpox (Tâche Noire)
Rickettsialpox (tâche noire) is a crusty, scab-like lesion with a red halo that occurs at the site of a mite bite. The lesion is caused by the Rickettsia akari bacteria that is harbored by mites that are associated with rodents. Fever, chills, swollen lymph nodes, rash, muscle pain, headache, and sweating may be associated with the condition.
Text Reference: "Rickettsialpox." Boston Public Health Commission.