Chinese tourists wearing masks to prevent contracting Middle East Respiratory Syndrome (MERS) walk at the Gyeongbok Palace in central Seoul, South Korea June 3, 2015. South Korean President Park ... more 
Chinese tourists wearing masks to prevent contracting Middle East Respiratory Syndrome (MERS) walk at the Gyeongbok Palace in central Seoul, South Korea June 3, 2015. South Korean President Park Geun-hye said on Wednesday everything must be done to stop MERS as fear of the disease shut hundreds of schools and led to corporate giant Samsung calling off a staff conference. REUTERS/Kim Hong-Ji less 
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Reuters | Photo By KIM HONG-JI / REUTERS
Wed, Jun 3, 2015 5:00 AM EDT