Mexico went a step further and did not grant docking privileges to the ship. A United States Coast Guard helicopter flew to Carnival Magic'' on 18 October to obtain blood samples. The following day the Texas Health Presbyterian Hospital employee and her spouse were allowed to disembark in Galveston after the tests were determined to be negative for both the employee and her spouse.
In a more decisive move, Mexico denied Carnival Magic docking privileges. A US Coast Guard helicopter arrived on October 18 to collect blood samples from the ship. The next day, the Texas Health Presbyterian Hospital employee and her spouse were allowed to leave the ship in Galveston after their tests showed they were not infected.