Norovirus and hantavirus outbreaks on cruise ships raise alarm how they differ from COVID-19

One virus spreads fast on ships, another is fatal

Cruise ships are facing back to back outbreaks, triggering international concern. After the hantavirus tragedy aboard MV Hondius, another vessel reported a major norovirus outbreak, leaving more than 100 passengers ill with the highly contagious stomach infection. Experts say the key differences from COVID-19 lie in symptoms, transmission routes, and risk profiles, including how deadly hantavirus can be.