Nobody books a vacation expecting to come home as a public health event. And yet, that’s what happened to Leo Schilperoord, a 70-year-old Dutch ornithologist who toured an Argentinian landfill looking for a rare bird before boarding the luxury expedition ship MV Hondius. Authorities believe he and his wife inhaled virus-laced particles from rodent droppings at the site, exposing them to the Andes strain of hantavirus , the only known form capable of spreading person-to-person. Leo died within days. The outbreak spread aboard the ship. Videos by VICE It’s an extreme example, but the underlying dynamic plays out in smaller ways constantly. Physician-scientist Dr. Steven Quay , author of the upcoming book “The Code as Witness,” which examines the origins of COVID-19 and failures in global biosecurity, spoke with the New York Post about the travel habits most likely to put someone at the start of an outbreak. “The dangerous travel exposure is usually not the obvious one,” he said.…