Hantavirus prevention.
For most people, hantavirus prevention boils down to three habits: don't aerosolize rodent waste, don't sleep where rodents nest, and rodent-proof your home before wildlife seeks shelter in it.
The core rules
- Don't sweep, don't vacuum dry droppings. Both kick virus into the air. Wet-clean with diluted bleach.
- Glove up + N95. Always use rubber/vinyl gloves and an N95 respirator when cleaning rodent-affected areas.
- Air out before entering closed spaces. Cabins, sheds, attics — open windows for at least 30 minutes before going in.
- Seal entry points. Any gap larger than a quarter-inch is a mouse highway. Steel wool or hardware cloth.
- Reduce attractants. Pet food in airtight containers, no bird feeders adjacent to the house, woodpiles >100 ft away.
If you were on the MV Hondius
Contact your national public health authority. Daily symptom log for 45 days. Avoid blood and organ donation for at least 60 days. If you develop fever, muscle aches, or shortness of breath, go to an emergency department and explicitly mention hantavirus exposure. Live updates here.
Travel
Risk is concentrated in specific endemic regions: US Southwest (Sin Nombre virus), Patagonia (Andes virus), Northern Europe (Puumala virus), East Asia (Hantaan virus). When traveling to these regions, avoid sleeping in rural cabins with active rodent activity, check trail shelters before sleeping in them, and don't handle dead or trapped rodents without gloves.
Frequently asked
What is the safest way to clean rodent droppings?
Do not sweep or vacuum dry droppings. Wear an N95 respirator and rubber or vinyl gloves. Spray droppings, urine, and nesting material with a bleach solution (1 part household bleach to 9 parts water) and let it soak for 5 minutes. Wipe up with paper towels and double-bag the waste.
How do I rodent-proof my home?
Seal any gap larger than a quarter-inch with steel wool or hardware cloth. Store food and pet food in airtight containers. Keep bird feeders away from the house. Trim shrubs and remove woodpiles within 100 feet of the foundation. Use snap traps in suspected entry zones.
Should I worry about hantavirus when camping or staying in a cabin?
If the cabin shows signs of rodent infestation (droppings, gnawed packaging, nests), air it out for at least 30 minutes before entering, then wet-clean as above. Sleep on a raised cot rather than the floor. The risk is highest in the US Southwest, Patagonia, and seasonal Puumala regions of northern Europe.
Disclaimer. Prevention guidance is for general information; if you have an active infestation or symptoms, contact a clinician or public health authority.