While taking a cruise is generally safe, having a high concentration of people in a semienclosed space makes it easy for viruses to spread among passengers.
Cruise ship outbreaks are not uncommon, and recent years have seen a steady rise in gastrointestinal illness outbreaks. Data from the Centers for Disease Control and Prevention's Vessel Sanitation Program show 23 GI illness outbreaks were recorded wi... [3674 chars]