1. A compound selected from capryl / capryl glucoside, lauryl glucoside, C8-C10-alkylpolyglucoside, C12-C16-alkylpolyglucoside and mixtures thereof for use as a bactericidal or bacteriostatic agent in the prevention and treatment of bacterial infections of the vaginal tract. 2. The compound according to claim 1, wherein said bacterial infections of the vaginal tract include infections caused by Gardnerella vaginalis, Neisseria gonorrheae, Atopobium vaginae, Chlamidia trachomatis, Trichomonas vaginalis, Mycoplasma genitalium / urealiticum / hominis / parvum, and Treponoma ppt. The compound according to claim 1, wherein said bacterial infections of the vaginal tract are infections caused by Streptococcus agalactiae. A compound according to any one of claims 1 to 3, wherein said prophylaxis and / or treatment comprises administering said compound starting from the 32nd or 35th week of pregnancy. A bactericidal and / or bacteriostatic vaginal composition comprising at least one compound according to claim 1, if necessary, in combination with an active ingredient selected from lauric acid, lauric acid monoglycerol ester and mixtures thereof. 6. The composition of claim 5, wherein said compound selected from caprylyl / capryl glucoside, lauryl glucoside, C8-C10 alkylpolyglucoside, C12-C16 alkylpolyglucoside and mixtures thereof, and said active ingredient selected from lauric acid, lauric acid monoglyceric ester and mixtures thereof, preferably include in a ratio of from 1:10 to 10: 1.7. The composition according to claim 5 or 6, which is a vaginal gel, vaginal lavage, vaginal cream, vaginal ointment, vaginal foam, vaginal tablets, hard and soft vaginal capsules.1. Соединение, выбранное из каприлил/каприл глюкозида, лаурил глюкозида, С8-С10-алкилполиглюкозида, С12-С16-алкилполиглюкозида и их смесей для применения в качестве бактерицидного или бактериостатического средства в профилактике и в лечении бактериальных инфекций вагинального тракта.2. Соединение по п.1, в котором
