Definition of Boutonneuse

Boutonneuse: Fièvre boutonneuse or African tick typhus, one of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky Mountain spotted fever, but less severe, with fever, a small ulcer (tache noire) at the site of the tick bite, swollen glands nearby (satellite lymphadenopathy), and a red raised (maculopapular) rash. The French word "boutonneuse" means pimply. Also called Conor and Bruch's disease.