Not only on cruise ships.

The FDA is investigating a Norovirus outbreak which has been associated with raw, frozen oysters on the half shell from South Korea. Eight individuals have been confirmed as becoming ill as a result of consuming the raw oysters at a private event in Woodburn, Oregon. On December 8, FDA testing of oysters from the same production lot showed positive results for norovirus. While raw oysters on the half shell are considered a delicacy they filter huge amounts of water and are frequently associated with disease outbreaks.