Physician discusses deadly hantavirus outbreak on cruise ship Dr. Zaid Fadul, a physician, discusses the deadly hantavirus outbreak on a cruise ship, confirming the Andes strain has a roughly 40% mortality rate. He explains its human-to-human transmission, distinct from other hantaviruses, and highlights the need for a possible eight-week quarantine due to a long latency period. NEW You can now listen to Fox News articles! A Swiss man who returned from a cruise linked to a deadly hantavirus outbreak has tested positive and been isolated, as health officials say the strain involved can spread between people in rare cases — though the overall risk remains low. Health authorities in Switzerland confirmed the man recently traveled aboard the MV Hondius, the cruise ship at the center of an outbreak that has already killed three passengers and sickened several others. Swiss health officials said the man sought medical care after developing symptoms and was immediately placed in isolation.…