There is just one known species of Catonella, being Catonella morbi. Catonella morbi is rarely associated with bacterial vaginosis and other vaginal infections and vaginal dysbiosis, but two papers report associations with vulvovaginal infections where Catonella morbi was present.
Catonella may contribute to vaginal dysbiosis that may cause preterm birth. Catonella species can be found in the mouth and vaginal tract, found so far exclusively in humans. Catonella morbi may contribute to or cause periodontal disease and possibly heart infections.
