SEOUL, SOUTH KOREA - JUNE 09: Elementary school students wear masks as a precaution against the MERS virus as they wait for a lesson to start at Midong Elementary School on June 9, 2015 in Seoul, South Korea. South Korea has reported eight deaths related to the virus with 2,500 people quarantined and 1,800 schools closed as of June 9, 2015. (Photo by Chung Sung-Jun/Getty Images)
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Getty Images News Chung Sung-Jun