South Korean President Park Geun-hye has demanded that everything is done to stop an outbreak of the deadly virus MERS in her country: Middle East Respiratory Syndrome.<br /><br /> Three people have died from the outbreak in South Korea where there are now 35 cases of MERS including several health workers who treated infected patients. <br /><br /> An official from the country’s health ministry said around sixteen hundred people have been quarantined in the country.<br /><br /> All of South Korea’s MERS infections have been traced to a business man who brought it into the country after a trip to the Middle East.<br /><br /> Hundreds of schools in South Korea were closed or had classed cancelled as of Thursday.<br /><br /> MERS is caused by a coronavirus from the same family as the one that triggered China’s outbreak of SARS in 2003. It has a higher death rate but it spreads slower making it less of a threat for now.