Canadian national health agency confirms positive hantavirus test

May 18, 2026 - 03:46

Canada's national health agency has confirmed that one of four Canadians who recently returned from a cruise ship has tested positive for hantavirus. The agency announced the result after investigating a cluster of illnesses linked to the vessel, which had reported an outbreak of the rare but serious virus. The three other individuals are still under observation, though their test results remain negative as of the latest update.

Health officials have not disclosed the specific cruise line or itinerary, citing privacy concerns and ongoing contact tracing. Hantavirus is typically transmitted through contact with rodent droppings, urine, or saliva, making its appearance on a cruise ship unusual. The agency is working to determine how the exposure occurred, including whether the infected person encountered contaminated areas during shore excursions or onboard.

Symptoms of hantavirus can include fever, muscle aches, and fatigue, which may progress to severe respiratory distress. The agency urges anyone who traveled on the affected ship and feels unwell to seek medical attention immediately. This confirmation marks a rare instance of the virus being linked to a cruise setting, and authorities are monitoring the situation closely to prevent further spread.