Hantavirus: A Small Germ With a Serious Warning

A clear guide to what hantavirus is, how it spreads, warning symptoms, and practical steps to prevent infection.

Intermediate

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Hantavirus is a disease caused by viruses that live in some wild rodents. In North America, deer mice are a common source. People usually get infected when they breathe in dust from dried urine, droppings, or saliva. The virus does not float by itself, but it can ride on tiny dust pieces. The illness is rare, yet it can be very serious.