What is hantavirus? What to know after 3 deaths tied to a cruise ship outbreak

The cruise ship MV Hondius.

AFP via Getty Images

• Hantavirus has been linked to three deaths on a cruise ship in the Atlantic Ocean, the WHO said.
• The health agency said it has confirmed at least five cases, including passengers who left the ship.
• The WHO said there is no need for concern or for travel restrictions.

Hantavirus has been linked to the deaths of three people who were aboard a cruise ship in the Atlantic Ocean, the World Health Organization said.