A cruise ship is stuck in Lisbon, Portugal, amid a COVID-19 outbreak among fully vaccinated crew members, officials said Sunday. The AIDAnova, with 2,844 passengers and 1,353 crew onboard, docked in Portugal on Dec. 29 while en route to Madera for New Year’s celebrations, officials said. But the ship was unable to continue pressing forward after 52 COVID-19 cases were detected among the fully vaccinated staff, authorities said. The company told German news agency Deutsche Presse-Agentur, or DPA, that all passengers aged 12 and older are fully vaccinated and have to take an antigen and a polymerase chain reaction (PCR) test before departing. “The company’s protocol was immediately actioned, with those infected, who are asymptomatic or displaying light symptoms, immediately isolated on the ship … and the company decided to end the cruise and disembark the passengers,” Lisbon port official Diogo Vieira Branco was quoted by Reuters as saying. AIDA Cruises, the German …