any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye

the number of cases of a disease divided by the number of infections with the agent that causes the disease

a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Any of numerous fungi that exhibit a one-celled growth form and reproduce by budding, including certain candidas that can cause infections in humans, A powdered or compressed commercial preparation of yeast cells, used chiefly as a leavening agent or as a dietary supplement, Spume, or foam, of water, verb_ To ferment, To rise