Carnival Cruise Line plans to make masks optional for its guests from March 1 after the U.S. Centers for Disease Control and Prevention (CDC) eased its warnings for cruise ships, the company said in a statement late on Friday.The company said masks would be recommended but not required.”There may…Carnival Cruise Line plans to make masks optional for its guests from March 1 after the U.S. Centers for Disease Control and Prevention (CDC) eased its warnings for cruise ships, the company said in a statement late on Friday.The company said masks would be recommended but not required.”There may…MarineLink NewsRead More