(NewsNation) — A norovirus outbreak has sickened over 70 people aboard a 13-day Royal Caribbean Cruise, the Centers for Disease Control and Prevention reported.

Royal Caribbean's Serenade of the Seas departed from San Diego on Sept. 19 and is scheduled to arrive in Miami on Thursday, Oct. 2.

71 out of 1,874 passengers and one out of 883 crew members have "reported being ill during the voyage." The predominant symptoms include diarrhea and vomiting.

In response to the outbreak, Royal Caribbean has increased cleaning and disinfecting procedures, collected stool specimens for testing, isolated sick passengers and crew and consulted with the CDC's Vessel Sanitation Program (VSP) about cleaning procedures and reporting cases.

19 gastrointestinal outbreaks on cruise ships in VSP's jurisdicti

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