Mobiluncus is a Gram-variable anaerobic bacteria found in the human vagina, with two species found – Mobiluncus curtisii and Mobiluncus mulieris – and there are 22 strains. Mobiluncus has an association with Gardnerella vaginalis and is antibiotic resistant, particularly to the typical bacterial vaginosis treatment of metronidazole.
This genus was recognised in vaginal fluids as early as 1895, and were first isolated in 1913. Mobiluncus is found in up to 82 per cent of women with BV, but just five per cent of normal women, and the fact it is resistant to antibiotics is not discussed, and metronidazole continues to be prescribed regardless.
Mobiluncus has been found in other parts of the body, including breast and umbilical abscesses, placentas, and blood cultures, and in women with preterm delivery and pelvic inflammatory disease.