CDC Alert: U.S. Travelers Under Close Watch Amid Current Health Risks

The Centers for Disease Control and Prevention (CDC) is closely monitoring the situation involving U.S. Travelers potentially exposed to hantavirus after an outbreak aboard the luxury cruise ship M/V Hondius. The ship, which departed Ushuaia, Argentina, on March 20, 2026, for a voyage to the Canary Islands, has been linked to a cluster of severe respiratory illnesses among passengers, including three deaths—a Dutch couple and a German national. As of May 7, 2026, the CDC has confirmed that the risk of hantavirus transmission to the general U.S. Public remains extremely low, but the agency is actively tracking the health of American travelers who were aboard the vessel.

The CDC’s statement reflects the agency’s ongoing assessment of the public health threat posed by the Andes strain of hantavirus, which has been identified in passengers on the M/V Hondius. This strain is notable for its potential for person-to-person transmission, raising concerns among health officials worldwide. While the CDC has not issued a formal travel advisory or health alert for the U.S. At this time, the agency is coordinating with international partners, including the World Health Organization (WHO) and the Africa Centers for Disease Control and Prevention (Africa CDC), to ensure a unified response.

Hantavirus is a rare but serious illness caused by viruses spread mainly by rodents and their urine, droppings, or saliva. Symptoms can range from flu-like illness to severe respiratory disease, known as hantavirus pulmonary syndrome. The CDC emphasizes that the risk of hantavirus infection in the U.S. Remains low, but travelers with symptoms such as fever, chills, muscle aches, headaches, and difficulty breathing after potential exposure should seek medical attention immediately and inform their healthcare provider of their recent travel history.

The M/V Hondius incident has prompted increased vigilance among public health agencies globally. Spain’s Canary Islands initially objected to the ship docking due to public health concerns, but the Spanish government ultimately allowed the vessel to dock in Tenerife after receiving assurances from health authorities. The CDC’s monitoring of U.S. Travelers aboard the ship is part of a broader effort to prevent the spread of infectious diseases and protect public health.

As the situation evolves, the CDC is expected to provide further updates based on the latest epidemiological data and risk assessments. For now, the agency advises travelers to remain informed about health risks associated with international travel and to follow standard precautions, including vaccination where recommended and avoiding contact with rodents.

For the general public, the CDC reiterates that the risk of hantavirus infection in the United States remains very low, but vigilance and prompt reporting of symptoms remain critical in containing any potential outbreaks.