A Carnival cruise ship that departed Miami and has “a small number” of people aboard who have tested positive for Covid-19, has been denied entry to ports at two Caribbean islands, the cruise line said.The Carnival Freedom departed Miami on December 18 and stopped in Curacao on Tuesday. Its planned stops at the Caribbean islands of Bonaire on Wednesday and Aruba on Thursday were canceled.Those stops were replaced by Friday’s stop in the Dominican Republic, and the ship will return to Miami as planned on Sunday, the cruise line said.The ship’s entry into Curacao was also delayed due to the Covid-19 cases detected onboard.Ashley Peterson, a passenger aboard on the cruise, told CNN the cruise line refused to inform her why the ship was delayed entry into Curacao. Later that day, she learned from a news report the delay was triggered by Covid-19 infections, she said. Peterson said it wasn’t until the next day when the ship was denied entry into Bonaire that passengers were officially informed of the Covid-19 cases, and said she may have taken a flight back to North Carolina if she knew of the positive cases. When asked by CNN, Carnival Cruise Line did not address specific claims by Peterson.Carnival and many other cruise lines require passengers to be fully vaccinated against Covid-19, with some exceptions for children.