Preventing Hantavirus Infection

Because infection is driven by contact with rodents and their waste, the single most effective prevention strategy is controlling rodents in and around buildings: sealing gaps and entry points, storing food and garbage in rodent-proof containers, keeping storage areas tidy, and trapping rather than letting an infestation build up unmanaged.

Spaces that have been closed up for a while — cabins, sheds, barns, garages, storage units — should be aired out before anyone spends extended time inside or begins cleaning, since disturbed dust in an enclosed space can carry infectious particles.

Health authorities generally advise against dry-sweeping or vacuuming areas with visible rodent droppings or nesting material, since that can stir contaminated dust into the air. Wearing gloves and using a wet-cleaning approach with a disinfectant is the safer, commonly recommended alternative. For detailed, step-by-step cleanup guidance, see the CDC's official instructions.

Outdoors, avoid sleeping directly on bare ground in areas with visible rodent activity, keep food sealed and stored away from sleeping areas, and don't handle wild rodents — dead or alive — with bare hands. Be extra cautious in cabins or outbuildings that have sat empty, since rodents often move in during unoccupied periods.

Farming, forestry, construction, pest control, and any work that regularly involves entering rodent-infested structures carries elevated exposure risk. Occupational safety guidance for these settings typically calls for gloves and, in higher-risk situations, a properly fitted respirator when disturbing potentially contaminated material.