ORLANDO, Fla. – The U.S. Centers for Disease Control and Prevention updated is guidance Friday to warn those at high risk of severe illness from COVID-19 to avoid cruise ships, whether they’ve had the vaccine or not. It is a shift from the previous warning that only targeted unvaccinated travelers. “Severe illness means that a person with COVID-19 may need: hospitalization, intensive care, a ventilator to help them breathe or they may even die,” according to the CDC. The updated guidance specifically warns those at high risk including older adults, people with certain medical conditions and pe...