Which facility measure is recommended when handling cases of suspected aerosolized biological agents to minimize airborne spread?

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Containment of airborne threats relies on keeping contaminated air from spreading to other areas. Negative-pressure isolation rooms achieve that by maintaining a lower air pressure inside the room than in surrounding areas, so air naturally flows into the room rather than out. The room’s exhaust air is then removed through filtration (often HEPA) before it’s released, reducing the chance of airborne agents escaping to others. This setup is specifically designed to limit dissemination when handling suspected aerosolized biological agents, protecting staff and other patients.

Positive-pressure rooms would push air from the room into adjacent spaces, increasing the risk of spreading contaminants. Outdoor triage offers no reliable containment for aerosols and could expose others. No special housing provides even less protection. When available, negative-pressure isolation rooms are the best option for minimizing airborne spread.