Hantavirus Tracker 2026

Usually hantavirus does not spread between people; most infections come from exposure to infected rodents. The current MV Hondius cluster involves Andes virus, which WHO identifies as the hantavirus species known to cause limited human-to-human transmission. That spread is uncommon and linked to close, prolonged contact.

WHO says person-to-person spread of Andes virus has been documented among contacts and is associated with close, prolonged exposure, especially household members, intimate partners, caregivers or people sharing confined spaces with a sick person.

No. WHO still assesses the wider public health risk from the MV Hondius event as low. Andes virus transmission between people is rare and generally requires close and sustained contact.

WHO says there is no licensed specific antiviral treatment or vaccine for hantavirus infection. Care is supportive, with early intensive care improving outcomes for severe cardiopulmonary disease.

Symptoms may begin one to eight weeks after exposure and often include fever, headache, muscle aches, abdominal pain, nausea or vomiting. Severe disease can progress rapidly to cough, shortness of breath and shock.

Follow local public-health guidance, monitor for fever or respiratory symptoms, and seek medical care promptly if symptoms develop. Tell clinicians about possible hantavirus exposure, travel history, rodent exposure and close contact with a suspected or confirmed case.