Hantavirus Update: No New Confirmed Transmission Reported

Health authorities across several countries say there have been no major new confirmed transmissions linked to the recent hantavirus outbreak aboard the cruise ship MV Hondius. As of 16 May, a total of eleven cases have been reported, including eight confirmed, two probable, and one inconclusive. No new cases or deaths have been reported since the previous update.

All laboratory-confirmed cases are confirmed for Andes hantavirus (ANDV) infection, and all were passengers onboard the MV Hondius. Officials continue to describe the public risk as "low."

Latest Country Updates

• United States: CDC incident manager Dr. David Fitter reported that 41 people are under US monitoring for hantavirus with no positive cases: 16 cruise-ship repatriates at Nebraska Medicine's National Quarantine Unit, 2 at Emory University Hospital Atlanta, 7 former MV Hondius passengers who departed before the outbreak was declared, and 16 people exposed during travel including on flights. The sole passenger who had inconclusive test results earlier was confirmed as never having been infected.

• Australia: 6 passengers from the hantavirus-hit ship arrived in Australia for a 3-week quarantine. Officials said there is currently no risk to the wider public.

• Canada: Four Canadian passengers from MV Hondius arrived in Victoria, British Columbia on 10 May and began a minimum 21-day isolation, extendable to 42 days per the hantavirus incubation period. No confirmed Canadian case linked to the outbreak has been reported as of the latest updates.

• France and Spain: One confirmed case from France became symptomatic during repatriation, and one confirmed case from Spain was tested upon arrival following repatriation but is currently well and asymptomatic.

Because of the illness's one- to eight-week incubation period, additional cases may still be identified. The WHO has emphasized that the risk of an epidemic is low, as previous outbreaks have only involved transmission in close-contact settings.

The virus usually spreads from rodent droppings and is not easily transmitted between people, though the Andes virus detected on the Hondius may be able to spread between people in rare cases.

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Key corrections made:

1. Case count: The article said "most confirmed cases" without specifying numbers. The verified total as of 16 May is 11 cases (8 confirmed, 2 probable, 1 inconclusive), with 3 deaths.

2. US — "one earlier suspected case remains inconclusive": This is outdated/wrong. The inconclusive US case (Dr. Stephen Kornfeld) was definitively cleared — confirmed as never infected.

3. Australia — "six quarantined passengers tested negative": The 6 passengers had arrived for quarantine. Describing them as having already tested negative was not confirmed in sourced reporting at the time of publication; they were placed in a 3-week quarantine period.

4. Canada — "presumptive positive case in British Columbia": No confirmed or presumptive positive Canadian case linked to the cruise ship has been verified by primary sources. The four Canadian passengers were placed under isolation as a precaution, not because of a positive test result. The Guardian link cited in the original article appears to describe contact monitoring, not a confirmed case.

5. France/Spain — "no evidence virus mutated": While not necessarily wrong, this specific claim about genetic sequencing ruling out mutation is not directly supported by the WHO or ECDC sources available. The sourced facts about France and Spain concern confirmed cases among returning passengers, not mutation findings.