which normally prevents resident bacteria from coming to the surface. "Generally, this resident flora is not the type that will make us sick," Almanza says, "but the assumption is that when you have ...

The vaginal flora is the bacteria that live inside the vagina. The normal vaginal flora is dominated by various lactobacillus species. Lactobacilli help to keep the vagina healthy by producing ...

Oil spills lead to rapid changes in the composition of the natural bacterial flora; oil-degrading bacteria that are nearly undetectable before release of the oil can become dominant in its presence.