Lactobacillus are known to have beneficial effects in the gut, genital tract, and skin, where they protect against infection and modify immune responses.
Lactobacilli are rod-shaped bacteria that ferment sugar, producing lactic acid as a byproduct, which can inhibit the growth of other microorganisms.
This type of bacteria usually prefers to grow in conditions with either no oxygen or tiny amounts.Little is known, however, about the potential benefits of Lactobacilli that live in our noses.
Now, research in the journal Cell Reports suggests that a strain of Lactobacillus adapted to living in the nose could protect against chronic rhinosinusitis.