When an infectious airborne illness strikes, some hospitals use negative pressure rooms to isolate and treat patients. These rooms use ventilation controls to keep germ-filled air contained,Ìýbut,Ìýin the event of an epidemic, theÌýrooms can fill up quickly. Now, a team of ²ÊÃñ±¦µä engineers have demonstrated a simple, cost-effective way for hospitals to use air ventilation to contain outbreaks.Ìý
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