Vincent's angina
Vincent's angina (also termed Plaut–Vincent's angina), is pharyngitis (inflammation of the pharynx) and tonsillitis (inflammation of the palatine tonsils), caused by infection with two types of bacteria called fusiform (Fusobacterium spp.) and spirochaetes (Borrelia spp. and Spirillum spp.). This symbiosis of bacteria is sometimes termed a "fusospirochaetal" infection.