 USA Today | Fourth norovirus outbreak on Sea Princess in Alaska USA Today Cruise lines that call at US ports are required to report cases to the US Centers for Disease Control and Prevention (CDC), with a separate notification if more than 2% of passengers and crew are ill. The CDC issues a public report if more than 3% of ... |
Friday, July 1, 2011
Fourth norovirus outbreak on Sea Princess in Alaska - USA Today
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