The MERS spread was originally expected to be contained by June 12, but new cases would continue to be added "sporadically" by the end of this month as new potential "super spreaders" infecting more than eight people were discovered. The patient zero, also called index case who began to show MERS symptoms from May 11, was quarantined from May 20. The last day of his 14-day incubation period was June 3, but since the day, another infection cluster, or a massive number of contagions, was caused by the 14th patient, who was infected by the first patient. The 14th patient alone infected more than 70 people at the Samsung Medical Center in Seoul, which was partially closed last weekend for its failure to control and prevent the viral disease within hospitals. The index case infected 37 people at St. Mary's Hospital in Pyeongtaek, some 60 km south of Seoul. The second wave of epidemic was originally forecast to ease from June 12 , which was the l...