News of passenger infections on the MV Hondius cruise ship emerged in early May, bringing hantaviruses into the spotlight. Here are the main scientific terms you need to know.

Two cases of the virus, which rarely spreads between humans, have been confirmed on the ship, and three people have died.

Three passengers have died after a suspected outbreak of hantavirus ripped through an Atlantic Ocean cruise ship, the MV Hondius. Hantavirus infections, which are usually spread…