NEW YORK, US - JULY 10: An aerial view of the cruise ship "Norwegian Joy" sails up the Hudson River in front of the skyline of Manhattan as the sun sets in New York City, United States on July 10, 2022.Lokman Vural Elibol | Anadolu Agency | Getty ImagesShares of cruise lines including Carnival, Royal Caribbean and Norwegian rose Tuesday after the U.S. Center for Disease Control ended its Covid-19 program for cruise ships.The CDC's program for cruise ships, which became voluntary earlier this year, required all passengers to be tested, encouraged vaccinations for staff and passengers and outlined specific......