The MV Hondius was the epicenter of the first-ever deadly outbreak of hantavirus aboard a modern cruise ship. Was this a freak occurrence, or a sign of things to come?

For some experts, the outbreak is raising broader concerns about how equipped the U.S. is to respond to future infectious disease threats.

Health officials across the United States and around the world are monitoring a rare but deadly outbreak of hantavirus after multiple confirmed cases were linked to a luxury cruise ship, including possible patients who weren't ever on the ship.

Dr. Stephen Kornfeld, a passenger from the MV Hondius who had tested “faintly positive” for hantavirus, has now tested negative and been moved out of a Nebraska biocontainment unit.

The Andes type of the hantavirus is spread by “close contact,” but it’s unclear how much of that transmission occurs by inhaling airborne droplets or other means

Ten people who were potentially exposed to the Andes strain of hantavirus are being monitored in five U.S. states, officials said.

An American on the repatriation flight began showing symptoms of hantavirus and another "tested mildly PCR positive for the Andes virus," the Department of Health and Human Services says.

Scientists think the hantavirus, the deadly pathogen that has infected 11 passengers on a Dutch cruise ship, could be as old as humans.

People exposed to the Andes strain of the hantavirus may not develop symptoms for up to 42 days, a delay that makes tracing infections more difficult

The agency developed a questionnaire to help identify possible exposures to the Andes virus, the only type of hantavirus known to spread person to person.