According to Associated Press, roughly 100 passengers sailing aboard Royal Caribbean’s Vision of the Seas have been struck by Norovirus during a cruise around Northern Europe. This is the fourth outbreak aboard the ship in 2010: In March two episodes of Norovirus were reported on separate voyages off  the coast of Brazil.  The Center for Disease Control (CDC) also cites an incident aboard Vision of the Seas in February.

Multiple outbreaks of the virus were also reported in March aboard Celebrity Cruises’ Mercury on three sailings from Charleston.  Celebrity Cruises, which is owned by Royal Caribbean, was forced to cut ports and and shorten cruises several times.

To learn how to reduce the chances of getting the Norovirus, see our previous story“Cruise Ship Doc Offers Tips For Avoiding Norovirus Aboard Ship”