90-Second Read: Hantavirus latest updates: U.S. citizen tests positive as 17 American passengers airlifted back

Dozens of passengers, including 18 people in the United States, are being monitored in medical facilities for Hantavirus tied to the deadly outbreak on board the cruise ship MV Hondius. The World Health Organization said that as of Wednesday, there were still 11 reported cases of Hantavirus stemming from the cruise ship, eight of which had been confirmed, two that were probable and one that remains inconclusive. The World Health Organization said on Wednesday that all 11 confirmed or suspected cases of Hantavirus are among people who were passengers aboard the MV Hondius.

A total of 16 passengers are currently at the University of Nebraska Medical Center in Omaha, according to health officials. David Fitter, the incident manager for the CDC's Hantavirus response. Meanwhile, 12 staff members at a Dutch hospital have been quarantined as a preventive measure after blood and urine from a Hantavirus patient were handled without following strict protocols.

The WHO and health departments around the world are working to identify others who may have been exposed to the virus by passengers after they left the ship. Follow-up and contact tracing for all contacts of Hantavirus cases linked to the cruise ship [are] ongoing. Health officials in Arizona, California, Georgia, Kansas, Maryland, Minnesota, New Jersey, Texas, Virginia and Washington are monitoring residents for potential infections.