Andes virus is rare but can be life-threatening. It is the only hantavirus known to spread person to person. Get the facts, symptoms, and when to seek care.

Hantavirus is rare, but everyday activities like cleaning mouse droppings, opening a dusty cabin, or sweeping a shed can increase exposure risk. This article explains 7 key facts about hantavirus, including hantavirus symptoms, how it spreads, when shortness of breath needs urgent care, and safe cleanup steps that help prevent infection.