Last year, there were 16 outbreaks on cruise ships, from norovirus, salmonella, E. coli or other unidentified pathogens that cause gastrointestinal symptoms such as diarrhea or vomiting.

The norovirus seemingly stayed onboard the Queen ... An earlier outbreak on the same boat during a Dec 14 to Dec 21 voyage sickened 138 of 2,430 passengers or 5% and 12 of 1,237 crew members ...

The cruise industry continues to balloon — with ever bigger, ever wilder boats and some 37.1 million ... associated with the highly contagious norovirus. In December alone, five cruise ships ...