Passengers wearing masks to prevent contracting Middle East Respiratory Syndrome (MERS) walk past a thermal imaging camera at Incheon International Airport in Incheon, South Korea, June 2, 2015. South Korea on Tuesday reported its first two deaths from an outbreak of MERS that has infected 25 people in two weeks, as public alarm grew and officials scrambled to contain the outbreak. REUTERS/Kim Hong-Ji TPX IMAGES OF THE DAY