- Royal Caribbean Cruises said Friday it isn't changing its sailing plans this summer despite reporting two positive Covid-19 cases aboard its Celebrity Millennium cruise ship on Thursday.
- All those in close contact with the two guests tested negative for the virus.
- The ship has a fully vaccinated crew and all guests over the age of 16 are required to show proof of vaccination.
The two guests who tested positive during end-of-cruise testing were asymptomatic and were placed in isolation. On Friday, Royal Caribbean announced that all those who were in close contact with the two guests tested negative for the virus.
Celebrity will be paying for the two guests to be taken home on a private plane, according to a representative for Royal Caribbean Group.
The discovery of the cases is an early test of whether the cruise operator's safety protocols are effective in detecting the virus aboard the ship.
The Celebrity Millennium, which departed St. Maarten on Saturday, was one of the first cruises in North America to start sailing again after being docked for over a year. The company's first sailing out of a port in the U.S. will be the Celebrity Edge, which departs June 26 out of Fort Lauderdale, Florida.
The Celebrity Millennium has a fully vaccinated crew, and all guests over the age of 16 are required to show proof of vaccination and a negative Covid-19 test taken within 72 hours before sailing. There was also routine testing throughout the weeklong cruise at every port.
The ship will dock at a port in St. Maarten on Saturday.
The company's stock was down less than 1% on Friday. It has risen 20% this year, giving it a market cap of nearly $23 billion.
A passenger aboard the ship told CNBC that the mood aboard the ship had not changed and normal activities have continued.
The cruise industry has been among the last sectors to resume operations since the pandemic. There were several high-profile outbreaks aboard cruise ships last year.
The Centers for Disease Control and Prevention has allowed the ships to resume sailing this year, after placing very strict safety protocols and requirements to prevent the spread of the virus.
Cruise line stocks are slowly rebounding this year after big players in the industry suffered huge losses during the pandemic. Shares of Norwegian Cruise line are down less than 1%. The company's stock has risen more than 27% this year putting its market cap at just under $12 billion.
Carnival Cruises' stock is up less than 1%. Its stock has risen nearly 39% this year, boosting its market cap to just under $34 billion.
—CNBC's Seema Mody contributed to this report.