The head of the World Health Organization (WHO) has sought to reassure residents of Tenerife that their risk of infection is low ahead of the arrival of a cruise ship on which an outbreak of hantavirus occurred.
Tedros Ghebreyesus stressed that "this is not another Covid" and that there were no symptomatic passengers currently aboard the MV Hondius.
The ship is due to arrive in the port of Granadilla in the early hours of Sunday, sparking concern among locals. Passengers are due to start disembarking at 07:00 GMT, the cruise operator said.
Six cases have been confirmed among the ship's passengers, including in one of the three who died while the Dutch vessel was sailing from South America.
Spanish officials have sought to allay concerns about the ship's arrival, laying out in detail the containment precautions being taken.
Hantaviruses are usually carried by rodents, but human transmission of the Andes strain - which the WHO believes was contracted by some of the ship's passengers while in South America - is possible.
Symptoms can include fever, extreme fatigue, muscle aches, stomach pain, vomiting, diarrhoea and shortness of breath.
"I know you are worried," Dr Tedros told Tenerife residents in a personal message on Sunday.
"I know that when you hear the word 'outbreak' and watch a ship sail toward your shores, memories surface that none of us have fully put to rest. The pain of 2020 is still real, and I do not dismiss it for a single moment.
"But I need you to hear me clearly: this is not another Covid. The current public health risk from hantavirus remains low."
He added that there was currently a WHO expert, Dr Freddy Banza-Mutoka, aboard the MV Hondius.
Along with two Dutch physicians, he is conducting medical and exposure assessments of everyone on the vessel, the WHO said, and is currently reporting that no more passengers are showing symptoms of hantavirus.
Dr Tedros arrived in Tenerife to observe the forthcoming operation first-hand.
The ship is expected to drop anchor in the Canary Islands sometime between 04:00-06:00 GMT on Sunday, Spanish Health Minister Mónica García said on Saturday.
Its passengers will be held on the boat and will only be able to leave on smaller boats when there is a repatriation flight waiting for them on the tarmac, she told a news conference.
Cruise operator Oceanwide Expeditions later gave an estimated arrival time of 04:30 GMT and said that once disembarked those on board "will be transferred immediately to their allocated aircraft".