DGS Rules Out Secondary Transmission After Hantavirus-Positive Passenger Flew With a Portuguese Crew on the 10 May Tenerife-to-Canada Repatriation

Portugal's Direção-Geral da Saúde told Público on Monday 18 May 2026 that it sees no evidence of secondary transmission and no elevated risk for the Portuguese population after a Canadian passenger later confirmed positive for the Andes variant of hantavirus shared a Saturday 10 May 2026 medical-repatriation flight from Tenerife back to Canada with a 12-strong Portuguese cabin crew. The patient developed symptoms on Wednesday 14 May, four days after the flight, was hospitalised on arrival in Canada with a mild clinical picture, and is not considered to have been infectious during the flight itself. Passengers wore FFP2/N95 respirators throughout the cabin, the crew worked the flight in surgical masks and gloves, and the aircraft underwent a full post-landing decontamination cycle before its next rotation.

The 10 May Repatriation Flight

The flight on which the Canadian patient travelled was one of the medical-repatriation rotations the Canadian authorities have run out of Tenerife since the World Health Organization declared the Hondius cruise-ship hantavirus cluster a notifiable event on Saturday 2 May 2026. The Hondius is a Dutch-operated expedition vessel that ran a 30-day Atlantic-island itinerary out of Rotterdam from 1 April; the working hypothesis among the Dutch and Canadian public-health agencies is that the initial rodent-mediated contamination took place at the pre-departure provisioning stage in the Netherlands and travelled with the ship through the early Madeira-and-Canaries port stops. The first confirmed fatality, a 70-year-old Dutch passenger, died on board on 11 April; ten more cases and two further deaths followed across the cluster's nine reporting jurisdictions. Portugal's airport-passenger statistics have not flagged any cluster-linked traffic into Portuguese airports, and the country has registered zero confirmed cases tied to the Hondius outbreak to date.

What the DGS Note Says

The DGS framing to Público rests on three operational facts and one virological fact. Operationally, the in-cabin air-handling-and-mask discipline run on the 10 May flight was the WHO airline-cabin protocol for a known suspected case in transit — FFP2/N95 in the cabin, surgical masks and gloves for the crew, and a contained decontamination cycle on landing before the next passengers boarded. Virologically, the Andes hantavirus variant — endemic to South America's Patagonia region and named for the Andes mountain range — is the only hantavirus serotype with documented person-to-person transmission in the medical literature, but DGS notes that even Andes-variant person-to-person events have only been recorded under 'prolonged close contact and exposure to bodily secretions or fluids', a profile that a routine masked-cabin flight does not approach. The 14 May symptom-onset date sits four days inside the cabin-departure window, which the agency reads as outside the realistic transmission envelope. DGS has placed the 12 Portuguese crew members on a routine 45-day clinical-surveillance window via their employer's occupational-health service and the Linha SNS 24 (808 24 24 24), but no quarantine, no testing and no work-restriction order has been issued.

The Hondius Cluster Reading

The Hondius cluster sits at 11 confirmed cases and 3 deaths as of the WHO's Sunday 17 May situation report, drawn from passengers and crew across the Dutch, Belgian, German, French, Italian, Spanish, Canadian, Brazilian and Argentine national-health surveillance systems. The Andes-variant identification of the index strain — first confirmed by the Dutch National Institute for Public Health and the Environment (RIVM) on 6 May — is consistent with the rodent-reservoir vector having entered the vessel at the pre-cruise provisioning stage rather than at any of the en-route port stops, since the Andes-variant reservoir species (Oligoryzomys longicaudatus, the long-tailed pygmy rice rat) is not native to the Atlantic-island archipelagos the cruise visited. The European Centre for Disease Prevention and Control (ECDC) categorises the broader cluster as a 'low' risk for the European population at large and a 'moderate' risk for the directly exposed cohort of Hondius passengers and crew, a reading DGS has imported wholesale into its own Portuguese risk assessment.

What This Means for Expats

No travel advisory for Tenerife or the Canary Islands: DGS has issued no travel restriction, no quarantine recommendation and no advisory against travel to Tenerife or the broader Canary Islands archipelago. The cluster sits inside the Hondius's specific passenger-and-crew cohort, not the ambient Tenerife population.
Cabin-side protocol for symptomatic passengers: the WHO/IATA airline-cabin protocol that ran on the 10 May rotation — FFP2/N95 in the cabin, surgical-mask-and-gloves on the crew, post-landing decontamination — is the same protocol Portuguese carriers (TAP Portugal, easyJet Europe, Ryanair) will run on any flight carrying a known suspected case of a respiratory pathogen with airborne or droplet-route concerns. Passengers who travel after a confirmed exposure event should declare it at the check-in counter and accept the cabin-mask requirement.
SNS 24 is the right first line: any expat resident worried about possible exposure to a hantavirus-implicated environment — including the long list of Hondius passengers and crew, but also any rodent-droppings exposure during rural construction or renovation work in Portugal — should call 808 24 24 24 for triage before walking into an SUS emergency room, the same routing pattern DGS uses for all suspected zoonotic events.
Hantavirus is not endemic to Portugal: the Andes variant has never been recorded in a Portuguese rodent population, and the European hantavirus serotypes that do circulate at low background prevalence (Puumala in Scandinavia and Western Europe, Dobrava-Belgrade in the Balkans, Saaremaa in the eastern Baltic) have not been seroprevalent in Portuguese surveillance data. The Portuguese hantavirus case register sits at single-digit imported cases over the last two decades, all of them travel-acquired and all clinically mild.
For the Portuguese crew on the 10 May flight: the 45-day clinical-surveillance window closes on Tuesday 23 June 2026. The crew remain on active duty rotations, with occupational-health monitoring through their carrier's medical officer. DGS will publish a closing note when the surveillance window closes if no symptoms emerge, in line with the standard contained-event reporting cycle.