Passengers from hantavirus ship arrive in US; 3 people in biocontainment

Three people are now in US biocontainment units after arriving from a cruise ship linked to a hantavirus outbreak, marking a rare domestic confrontation with the deadly pathogen. The virus, which can become airborne in rodent droppings and has a 38% mortality rate in the Americas, poses a risk far higher than the typical respiratory illness. Health officials are monitoring 14 additional passengers from the ship, which disembarked in Florida. The emergency response is 50% more aggressive than the protocol for standard cruise ship illness outbreaks, reflecting the virus's lethal potential and the need for immediate containment to prevent wider spread.