There have been 6 gastrointestinal illness outbreaks on cruise ships — 3 of which were attributed to Norovirus — in less than 2 months, according to the CDC.

More than 90 people have been reported ill on board a Royal Caribbean ship sailing out of Tampa, Florida, according to the Centers for Disease Control. An outbreak of an unknown illness with primary symptoms of diarrhea,

A gastrointestinal illness has broken out this week on the Radiance of the Seas cruise ship, according to the US Centers for Disease Control and Prevention.