Yeast infections can recur or become chronic if the bacteria in your vagina are imbalanced or if you have a weakened immune system. Certain practices may help prevent them. While yeast infections ...

Our immune systems can often eliminate bacterial infections, but sometimes those bacteria are very tough and persistent, and they establish more long-term, ... Trending / Microbiology / Revealing How ...

Bacterial infections occur when harmful bacteria multiply in your body, ... Living with a chronic health condition; ... (by mouth), apply topically (directly onto your skin), or use intravenously ...

These bacteria live in balance, working together to keep your mouth healthy and free from infection. But bacteria that sit comfortably in your body may not be so welcome in someone else's bloodstream.