The word “virus” still sends shivers down the spine, and with good reason. This week, alarm bells went off after an outbreak of hantavirus was reported aboard the expedition cruise ship M/V Hondius, which was sailing in the South Atlantic after setting sail from Ushuaia, Argentina.
With concerns about the disease crossing borders, the Centers for Disease Control and Prevention (CDC) has had to come forward to clarify: Are we facing a new health threat on U.S. soil? Here is the whole truth about the risk of Hantavirus in the United States.
Monitoring in three key states
NEW: President Trump says he’s been briefed on Hantavirus.
“It’s very much, we hope, under control.”
“I think we’re going to make a full report about it tomorrow. We have a lot of people – a lot of great people are studying it. It should be fine, we hope.” pic.twitter.com/nelc7QOIlz
– Fox News (@FoxNews) May 8, 2026
CDC Director Jay Bhattacharya confirmed that the agency is on “high alert” coordinating with international partners.
Currently, health authorities are keeping U.S. passengers who were on board the ship under strict surveillance.
Monitoring is concentrated in three states: Georgia, California and Arizona.
Despite the mobilization, the CDC ‘s message is one of caution but not panic.
“So far, no U.S. citizen has shown symptoms of illness,” the institution said.
The speed with which action was taken following notification of the outbreak on the M/V Hondius has been key to containing potential spread.
How is it spread and how dangerous is it?
The Andes strain of hantavirus, the most dangerous and transmissible under close human-to-human contact.
This variant is the predominant one in Argentina, from where the cruise ship MV Hondius sailed, now confined by an outbreak of this disease. In Argentina, the virus has a high… pic.twitter.com/1126pMQmtH
– DW English (@dw_english) May 7, 2026
Hantavirus is not a new enemy, but a very serious one.
It is transmitted mainly by infected rodents (through their saliva, urine or droppings).
However, what really worries the population is the possibility of human-to-human transmission.
Bhattacharya was emphatic on a crucial point: hantavirus is not transmitted by people without symptoms.
For person-to-person transmission to occur, prolonged “close contact” is required, which is usually limited to very intimate family or health care settings.
For this reason, the risk to the average citizen walking the streets of Los Angeles or New York is still rated as “very low”.
The fear cruise ends in Spain
The hantavirus-stricken MV Hondius cruise ship is heading toward Spain’s Canary Islands, however, many officials do not want the ship to dock. At least 12 countries, including the U.S., are monitoring people who had disembarked the ship before the hantavirus was confirmed…. pic.twitter.com/GjvwQcRnPj
– CBS Evening News with Tony Dokoupil (@CBSEveningNews) May 7, 2026
While the United States is keeping an eye on the returnees, the M/V Hondius has found port.
Following a request from the World Health Organization (WHO), Spain agreed to receive the vessel in the Canary Islands.
There, elite medical teams coordinate evacuations, isolation of infected passengers and repatriation plans under international biosecurity protocols.
Hantavirus can cause a severe respiratory syndrome, so authorities are leaving nothing to chance.
Although the situation on the cruise ship is critical, for the rest of the world, and especially for the United States, the firewall seems to be working.
What about you Onnda, do you feel reassured by the CDC’s statements or do you think we should take stricter measures with international cruise ships?
Stay safe and well informed about this and other health alerts on QuéOnnda TV.
Filed under: Hantavirus in United States


