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TRB Publications IndexResearch in ProgressTRID
Computer viruses () Safety and security (H) Hazards and emergency operations (Hh) Use For: Emergency services Fires (Hhu) Fire causes (Hhua) Fire detection systems (Hhud) Use For: Smoke detectors Fire fighting (Hhuf) Fire prevention (Hhup) Wildfires (Hhuw) Fires by type (Hhuy)