A U.S. Navy warship has paused its deployment to South America due to a COVID-19 outbreak among its “100 percent immunized” crew, the Navy announced on Christmas Eve. “USS Milwaukee (LCS 5), a Freedom variant littoral combat ship, remains in port as some Sailors test positive for COVID-19,” the U.S. 4th Fleet said in a statement. “The crew is 100 percent immunized and all COVID-19 positive Sailors are isolated on board and away from other crew members. A portion of those infected have exhibited mild symptoms. The vaccine continues to demonstrate effectiveness against serious illness.”