Understanding Hantavirus
Hantaviruses are a family of RNA viruses carried by rodents, primarily deer mice (Peromyscus maniculatus) in North America. Humans become infected by breathing air contaminated with virus particles from rodent urine, droppings, or nesting materials.
The most serious form in the US is Hantavirus Pulmonary Syndrome (HPS), which causes severe respiratory illness and can be fatal without prompt medical care.
Learn MoreSymptom Checker
Select any symptoms you're experiencing. This is not a medical diagnosis — seek professional care.
Prevention at a Glance
Seal Your Home
Fill cracks and gaps in walls, roofs, and foundations to keep rodents out. Steel wool + caulk work best.
Store Food Securely
Use metal or thick plastic containers with tight-fitting lids. Never leave pet food out overnight.
Ventilate Before Cleaning
Open windows and doors for 30+ minutes before cleaning areas with rodent activity.
Wear Protective Gear
Use gloves and a properly fitted N95 respirator when working in rodent-infested areas.
Wet Before Sweeping
Never dry sweep. Spray droppings with bleach solution (1:10) before wiping up.
Trap & Remove
Use snap traps in areas of rodent activity. Dispose of dead rodents safely in sealed bags.
Explore Hantavirus Information
Educational resources to help you understand, prevent, and respond to hantavirus
Understanding Hantavirus
Learn about symptoms, transmission, and the science behind hantavirus disease.
Read More →Prevention & Safety Guidelines
Evidence-based guidelines to protect yourself and your home from hantavirus exposure.
Read More →Official Resources
Access fact sheets, healthcare provider guidance, and links to authoritative sources.
Read More →If you have been in areas with rodent activity in the past 6 weeks AND develop fever, severe muscle aches, or breathing difficulty — go to an emergency room immediately.