Even after more than 100 passengers and crewmembers fell sick during a norovirus outbreak aboard the Caribbean Princess cruise ship, passenger Jan van Milligen said life on board still felt surprisingly normal.

“The normal atmosphere is still here,” van Milligen, who has spent the last 21 days aboard the ship with relatives and friends from South Africa, told NBC News on Saturday. “We went to a show last night, had dinner and breakfast this morning.”

The outbreak sickened 102 of the ship’s 3,116 passengers and 13 crewmembers, according to the Centers for Disease Control and Prevention.…