Cruise News Briefing - August 10, 2021. A preliminary injunction will allow Norwegian Cruise Line Holdings to require vaccinations on sailings from Florida. Disney Dream has resumed cruises from Florida, marking the first Disney ship to resume service from the U.S. Carnival Cruise Line’s Mardi Gras has called on Cozumel, Mexico for the first time. Cruise line stocks were down on Monday for CCL, RCL, and NCLH.