A suspected hantavirus outbreak on a luxury cruise ship has led to fatalities and illnesses among passengers, with ongoing investigations by the World Health Organization (WHO). The virus, spread by rodents and occasionally humans, is being analyzed to identify the specific strain involved in the outbreak. Last year, musician Betsy Arakawa passed away from a hantavirus infection, bringing attention to the disease.
Hantavirus is transmitted by rodents, including common species in North America like the deer mouse and white-footed mouse. The virus has a history of outbreaks in Asia and Europe, with new strains causing respiratory diseases in the U.S. since the 1990s. The virus is mainly spread through contact with rodent excreta, especially when disturbed and inhaled, posing a risk to individuals cleaning enclosed spaces with rodent presence.
Although rare, human-to-human transmission of hantavirus can occur, particularly with the Andes virus in the Americas. Symptoms of hantavirus infection typically manifest within two weeks and may include fatigue, fever, muscle pain, and respiratory distress. Treatment focuses on symptom management, as there are no specific antiviral medications available. Fatality rates vary depending on the strain, with hantavirus pulmonary infection having rates between 20 to 50 percent.
Hantavirus cases are relatively uncommon, with an average of around five cases reported annually in Canada. Prevention measures include airing out enclosed spaces before cleaning, wearing protective gear, and using bleach solutions to sanitize areas contaminated with rodent waste. Health authorities advise against sweeping or vacuuming such areas to prevent the spread of virus particles.
