Medics were working on Monday to evacuate two people with symptoms of the deadly hantavirus after a suspected outbreak on a luxury cruise ship held off West Africa carrying mostly British, American and Spanish passengers, officials said.Around 150 people were still stuck on the vessel after three people - a Dutch couple and a German national - died, and others fell ill, including a Briton who left the vessel and was being treated in South Africa, authorities added.Hantavirus, which can cause fatal respiratory illness, can be spread when particles from rodent droppings or urine become airborne.