Effect of a New Probiotic Strain in the Reduction of Group B Streptococcus Colonization in Pregnant Women

7 months intervention study: with a screening period of 12 weeks after which participants GBS+ women will be randomized and start the orally intake of 1 capsule per day of the Lactobacillus salivarius V4II-90 (1\*10E9 CFU) probiotic supplement over a 12 weeks period. A visit will then be completed one month after delivery.

7 months intervention study: with a screening period of 12 weeks after which participants GBS+ women will be randomized and start the orally intake of 1 capsule per day of the placebo supplement over a 12 weeks period. A visit will then be completed one month after delivery.