Passengers on a third evacuation flight from Tenerife arrive at Eindhoven Air Base in Eindhoven, Netherlands, on Tuesday. | Bloomberg

Passengers from the MV Hondius cruise ship are being repatriated under a patchwork of measures that reflect uncertainty over how this strain of hantavirus spreads, complicating efforts to contain the deadly outbreak.

Some passengers are being placed in biocontainment units, notably in France, for at least two weeks. Australia plans to quarantine passengers in a purpose-built facility outside Perth. But in the Netherlands, most are being asked to self-isolate for six weeks, with short outdoor walks permitted under masking and distancing rules.

The divergent responses come as health officials stress that the risk to the broader public remains low and that hantavirus doesn’t spread between people as easily as COVID-19.…