According to CBS News reporting back in April 2025, all full-time employees working on the VSP were fired, including the epidemiologist that led the CDC's outbreak response on cruise ships. Only a smaller group of twelve US Public Health Service officers stayed on board. And just a single epidemiologist, who was still in the early stages of their training, remained in the VSP team to investigate outbreaks at the time of reporting.
Prior to boarding the ship, the first two cases had traveled to Argentina, Chile and Uruguay on a bird-watching trip which included visits to sites where the species of rat that's known to carry hantavirus was present. He added that the WHO is trying to track the movement of the couple.
Our CDC team began coordinating with domestic and international partners as soon as we were notified of a hantavirus situation. We understand that people are concerned and looking for information and that is why we provided clear, written health guidance to the American passengers through the State Department. The safety and health of the affected American travelers is our number one goal.