In the MMBC context, what is an exposure pathway?

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An exposure pathway is the route by which a person could come into contact with a biological agent. In MMBC, exposures can occur through air (inhalation of aerosols or droplets), contaminated food or water, contact with contaminated surfaces, or via vectors that carry the agent. Understanding these pathways helps responders assess risk, implement protective actions, and prioritize controls such as masking, hygiene, environmental cleaning, and isolation measures. The other options aren’t exposure pathways: delivering vaccines is a therapeutic intervention, not a route of exposure; ventilation measurements describe environmental setup rather than exposure routes; and specimen collection protocols concern how samples are obtained, not how exposure occurs.