Public Health Guide

Prevention

Safe cleanup practices for cabins, sheds, and rural properties — the most effective defense against Hantavirus exposure.

Cleaning rodent-affected spaces, safely

The CDC's recommended sequence for cabins, garages, and outbuildings that have been closed for the season.

  1. 01

    Air out before entering

    Open doors and windows of cabins, sheds, or barns for at least 30 minutes before going inside. Leave the area while it ventilates.

  2. 02

    Never sweep or vacuum

    Dry sweeping or vacuuming aerosolizes the virus. Use a wet method only.

  3. 03

    Disinfect, then wipe

    Spray surfaces, droppings, and nests with a 1:10 bleach solution. Let sit 5 minutes, then wipe with paper towels.

  4. 04

    Wear protection

    Use rubber gloves and an N95 respirator at minimum. Wash hands with soap and water afterward.

  5. 05

    Seal entry points

    Close gaps larger than ¼ inch with steel wool, caulk, or hardware cloth. Store food in rodent-proof containers.

  6. 06

    Seek care early

    If you develop fever and muscle aches within 6 weeks of potential rodent exposure, contact a clinician immediately and mention the exposure.

When to call 911

Sudden shortness of breath after rodent exposure is a medical emergency.

HPS can progress from flu-like symptoms to respiratory failure in under 24 hours. If you or someone in your household experiences difficulty breathing within six weeks of potential rodent exposure, do not wait.

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