Norwegian Cruise Line Holdings sues Florida over prohibition on vaccine requirements.

The fight over requiring vaccinations for travel is heating up. Norwegian Cruise Line Holdings sued Florida’s surgeon general on Tuesday, accusing the state of preventing it from “safely and soundly” resuming trips by barring it from requiring customers to be vaccinated against the coronavirus. The filing represents the latest twist in a monthslong fight over the resumption of cruises from Florida, a hub for the industry. Under Gov. Ron DeSantis, the state has fought vaccine requirements by cruises and other businesses, claiming that such policies are discriminatory. Supporters of vaccine requirements have argued that requiring vaccines is necessary to protect public health.