title: Norovirus challenges aboard cruise ships.
authors.affiliation: Surgical Department, Rikshospitalet-Radiumhospitalet Medical Center, Oslo, Norway. eilifdahl@hotmail.com
authors.forename: Eilif
authors.initials: E
authors.lastname: Dahl
mesh_terms: D017250:Caliciviridae Infections / Q000517:prevention & control*; D005759:Gastroenteritis / Q000517:prevention & control*; D006801:Humans; D009326:Naval Medicine; D029322:Norovirus; D009784:Occupational Diseases / Q000517:prevention & control*; D016272:Occupational Health; D012767:Ships