In a significant health update from British Columbia, Canadian authorities have reported a presumptive positive case of the hantavirus among one of the four Canadians quarantined after exposure on a cruise ship. Dr. Bonnie Henry, the provincial health officer, announced that the individual, who had been aboard the MV Hondius, developed mild symptoms such as fever and headache. Both the patient and their partner, who tested negative, were transferred to a hospital in Victoria for further assessment and monitoring.
The positive result, described by Dr. Henry as “presumptive,” awaits confirmation from the national microbiology lab in Winnipeg, with results expected over the weekend. Despite the concerning test outcome, Dr. Henry emphasized the situation was anticipated and managed as planned. “The patient is stable, and their symptoms remain mild,” she reassured, noting that they remain in hospital isolation, receiving appropriate care.
In addition to the couple, a third individual from the same lodging has been hospitalized as a precautionary measure, while the fourth person continues to quarantine at home under daily observation. These individuals arrived in Victoria on May 10 and were immediately placed in a 21-day quarantine, initially showing no symptoms. Dr. Henry highlighted the proactive measures taken, reflecting the seriousness with which the health authorities are treating the outbreak.
Meanwhile, France’s Pasteur Institute has completed the full sequencing of the Andes virus found in a French passenger from the same cruise ship. The genomic analysis revealed that the virus closely matches known strains in South America, with no new characteristics that might increase its transmissibility or danger. The virus identified among passengers on the MV Hondius was found to be identical and about 97% similar to other Andes viruses circulating in South America, including those found in rodents. Jean-Claude Manuguerra of the Pasteur Institute noted that the observed variations seem to be natural and do not alter the virus’s characteristics among travelers.
Tragically, since April 11, three passengers from the cruise ship have died from suspected hantavirus infections, including a Dutch couple and a German woman. The ongoing investigations and health measures underscore the complexity and risks associated with the hantavirus outbreak linked to the MV Hondius.