Microbe - Sometimes referred to as a microorganism, a microbe is an organism that is microscopic and thus invisible to the naked eye. ⏎
Mucous Membrane - The moist linings of body passages and internal cavities involved with absorption and secretion of substances.⏎
Latent Infection - An infection that is currently not producing or showing any symptoms but has the potential of being reactivated and then manifesting symptoms.⏎
Institute of Medicine - An independent, nonprofit organization that works outside of government to provide unbiased and authoritative advice on health and medicine to decision makers and the public.⏎
Morbidity - The relative occurrence of a disease or a condition that causes illness.⏎