Cruise-Associated Diarrhoeal Disorder
Frequency Outbreaks of CADD occur in 1.4/1,000 cruises or 2.3 outbreaks/10 million passenger-days
Agents A specific etiologic agent is implicated in 2/3 of cases; half are bacterial—enterotoxigenic E coli, Salmonella enteritidis, Shigella sonnei—or viral—Norwalk-like agent; a vehicle of transmission is identified in half
Potential food risks Scallops, eggs, food from caterers in onshore excursions
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