A Canadian individual who recently returned from a cruise aboard the MV Hondius has tested positive for hantavirus, as confirmed by health authorities. This marks a significant development, being the first case linked to the cruise in North America and the tenth overall occurrence associated with this outbreak.
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On May 17, the Public Health Agency of Canada announced that one of four Canadians who sailed on the MV Hondius received a “presumptive positive” test result for hantavirus. Further testing will be conducted at the National Microbiology Lab to confirm the diagnosis. The agency confirmed that one sample tested positive for hantavirus, while another individual travelling with the confirmed case tested negative.
The affected individuals are both in their 70s, hailing from the Yukon, and they have been admitted to a hospital in Victoria, British Columbia. The other two Canadians on board are a resident from Vancouver Island in their 70s and a British Columbia resident in their 50s who lives abroad. All four have been placed in isolation following their return.
Dr. Bonnie Henry, the provincial health officer for British Columbia, sought to alleviate concerns surrounding the positive test. She emphasised that hantavirus is distinct from other respiratory viruses such as COVID-19, influenza, and measles, stating that it does not exhibit pandemic potential. Dr. Henry also confirmed that none of the passengers had mingled with the public after coming ashore at Victoria International Airport and were promptly taken to the hospital upon arrival.
Initially, the four Canadians were required to maintain isolation for a minimum of 21 days, a guideline now re-evaluated by health officials following the positive result. The hantavirus outbreak linked to the MV Hondius has already claimed three lives, with the Canadian patient being the tenth confirmed case related to the cruise ship, according to reports from The Washington Post. The fatalities include a Dutch couple and a German national, while one individual remains in intensive care in South Africa.
The Public Health Agency of Canada has reassured the public that the risk stemming from the hantavirus outbreak linked to the MV Hondius is currently low. All confirmed cases so far have involved passengers or crew members from the cruise. The MV Hondius, which typically carries around 150 passengers, set sail from Argentina on April 1, venturing to various destinations including Antarctica, the Falkland Islands, and several islands in the South Atlantic.
Meanwhile, in the United States, the Department of Health and Human Services (HHS) reported that 18 American passengers from the MV Hondius returned home, with 16 being placed in quarantine at the University of Nebraska Medical Center in Omaha, while two were transported to Emory University Hospital in Atlanta.
Hantavirus is primarily transmitted through contact with rodents, with humans typically exposed to the virus via bites or contact with the urine, droppings, and saliva of infected rodents. However, the Andes strain responsible for the recent outbreak has been confirmed to transmit between humans, particularly in the early stages of the illness when the virus is most contagious, as noted by the World Health Organisation (WHO).
Public health officials are keen to monitor the situation given the potential for human-to-human transmission and the origin of these cases from a cruise setting. With preventative measures in place for those on board and heightened awareness surrounding hantavirus, authorities are taking steps to ensure the health and safety of both passengers and the wider community.
As investigations continue and further tests are conducted, health officials remain vigilant in their efforts to contain the spread of this virus while providing timely information to the public.