A suspected hantavirus cluster aboard a cruise ship has raised concerns about the rare, rodent-borne disease.
Here’s what you need to know about hantavirus including what it is, how it spreads, how it’s treated and if there are any prevention methods:
What is hantavirus?
Hantaviruses are a family of viruses that can cause serious illnesses and death, according to the CDC.

Stock photo of a colorized electron micrograph of the Hantavirus.
Alfred Pasieka/Science Photo Lib/STOCK PHOTO/Getty Images
How does hantavirus spread?
Hantaviruses are usually spread through rodents, including rats and mice, mostly from exposure to urine, droppings or saliva. Although the viruses can spread through a rodent bite or scratch, such infection is rare, the CDC says.
Hantaviruses may also spread from person to person, but that also is rare and only suspected for one subtype from South America, according to the WHO.
Read more about hantavirus here.