There’s been a lot of hubbub in recent weeks on the internet in regards to the recent Andes hantavirus outbreak, creating an apocalyptic tension surrounding the fate of the isolated cruise ship upon which it originated. Many have jumped to the remote conclusion that hantavirus is the new coronavirus, and that letting the poor cruise ship dock signs humanity’s death warrant all over again. However, to combat harmful echo chambers of rumors and misinformation that dominate much of online discourse on this topic, it is necessary to examine the facts of this medical emergency to accurately assess how much of a danger, if any at all, hantavirus poses.
“Hantavirus” describes a virus family most frequently spread by rodents. A majority are not spread person-to-person; Andes is an exception. It causes Hantavirus Pulmonary Syndrome (HPS), a severe, often deadly respiratory illness. Andes virus is believed to spread from human to human over close, prolonged contact, which makes it significantly less contagious than other historically epidemic-causing viruses, such as Covid-19 or measles or smallpox. Due to its high mortality rate, however, it still poses a danger.
Andes hantavirus is found primarily in South America. It was picked up by the Dutch company Oceanwide Expeditions’s cruise ship, MV Hondius, departing Argentina for a polar cruise to Antarctica. After the outbreak was identified, Spain permitted the ship to dock on the Canary Islands on its way home to the Netherlands on May 10th, and 147 passengers and crew were evacuated to their home countries. By May 18th, the ship was in the Netherlands, docked at the Port of Rotterdam for a thorough disinfection.
As of May 2026, there have been 11 confirmed cases worldwide and 3 reported deaths. Exposed passengers may have spread the virus to the US, Canada, Spain, and France, among other countries. There are no confirmed cases in the US yet, and passengers are being monitored for up to 42 days to account for the virus’s incubation period (1-6 weeks).
A typical victim of hantavirus often becomes infected via rodents (cleaning rodent-infested spaces, breathing in rodent-contaminated dust, touching rodent nests, etc.). Easy prevention advice, according to the CDC is as follows:
- ventilate rodent-infested spaces before cleaning them
- clean with disinfectant instead of just sweeping
- use gloves and masks
Overall:
Will hantavirus become a pandemic? According to the CDC and WHO, probably not.
Why? It spreads inefficiently, requiring prolonged contact (such as rubbing elbows on a cruise ship), and authorities have isolated all those potentially carrying it.
