The hantavirus outbreak has spread to Europe after a passenger who had already left the MV Hondius cruise ship tested positive once back home, authorities announced in an update Wednesday.
Swiss authorities said the man returned home last month following a trip to South America with his wife before testing positive for the virus, which can lie dormant for up to eight weeks.
He went to a Zurich hospital for testing after the cruise operator, Oceanwide Expeditions, emailed recent passengers about the spreading virus that has killed three people and sickened at least five, the World Health Organization said.
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