How different countries are dealing with passengers from the ship

In the Netherlands, Dutch nationals who left MV Hondius on Sunday were flown to Eindhoven, and are now completing their quarantine period.

They were transported in vans directly to their home addresses, the government said, adding that those in isolation would be contacted daily by the relevant health officials "to ensure that any symptoms are identified and appropriate care can be provided promptly".

Thirteen Dutch nationals - eight passengers and five crew members - were on board the ship when it docked in Tenerife.

Fourteen Spanish nationals flown from Tenerife to Madrid are undergoing mandatory quarantine at a military hospital in the capital.

Residents of Tenerife, and the Canary Islands in general, had expressed concern about the cruise stopping there. But WHO officials insisted that the risk of wider contagion was low "because of how the virus works".

The ship has not docked directly in Tenerife - instead it is anchored out at sea and passengers are being ferried to Granadilla port, well away from residential areas.

The country has confirmed its first case of hantavirus after a French national developed systems while travelling on a chartered flight from Tenerife to Paris.

French Health Minister Stéphanie Rist said a woman was isolating in Paris and her health was deteriorating, with 22 contact cases traced.

French PM Sébastien Lecornu had said over the weekend that all five French citizens travelling back from Spain would be "immediately placed in strict isolation until further notice".

German health authorities said on Monday that four people had arrived in the country overnight and were monitored in an isolation unit ‌at Frankfurt University Hospital.

The country's health ministry has said all four, who are not currently ​showing symptoms, were being transferred to their homes in ⁠Berlin, Baden-Wuerttemberg, Bavaria and Schleswig-Holstein.

They will be "continuously and closely monitored for symptoms," Germany's federal health ministry said.

Local health authorities will decide on the specific measures to be taken.

A man who left the cruise in Saint Helena has tested positive for hantavirus since returning home.

The Swiss national is receiving care and his wife, who was travelling with him, has not shown any symptoms of the virus but is self-isolating as a precaution.

The risk to the public in Switzerland is low, the Federal Office of Public Health said in its most recent update.

Investigations are ongoing into how the outbreak started and if it originated in Argentina, where the ship began its journey.

The WHO has previously said the first two cases had "travelled through Argentina, Chile and Uruguay on a bird-watching trip which included visits to sites where the species of rat known to carry the virus was present".

Some Argentinian officials have said that is their leading hypothesis, but nothing has yet been confirmed.

The Andes strain of the virus, which is behind this outbreak, is mostly found in Argentina and Chile.

Among the crew of the MV Hondius are 38 people from the Philippines.

There are currently no recorded cases of hantavirus in the country, with officials saying the risk remains "extremely low".