Royal Caribbean shares tumble as 6 Covid cases discovered on board a ship, cruise line expands U.S. testing policy - CNBC

1. Royal Caribbean shares tumble as 6 Covid cases discovered on board a ship, cruise line expands U.S. testing policy  CNBC
2. Six cruise ship passengers test positive for Covid: 4 vaccinated, 2 unvaccinated  CNN
3. NEWS: Royal Caribbean expands COVID-19 testing requirements  Royal Caribbean Blog
4. WATCH: Celebrity Cruise passengers return after one tests positive for COVID-19 mid-cruise  KOMO News
5. Cruise ship preps to set sail with first at-sea roller coaster  Good Morning America
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