norovirus

The number of cruise passengers is expected to reach a record number this year, but norovirus outbreaks on cruises are seeing yearly increases, as well.

Holland America has reported its fourth norovirus outbreak of 2025 on a cruise out of Port Everglades, with nearly 150 passengers and 10 crew members falling ill.

Outbreaks are often seen on cruise ships, in living situations like nursing homes and jails, along with other places where people are close together.

A multistate outbreak of norovirus illnesses linked to raw oysters from Canada is under investigation in 13 states by the FDA.