Workers wearing masks disinfect the interior of a subway train at a Seoul Metro’s railway vehicle base in Goyang, South Korea, June 9, 2015. Photo: Reuters An outbreak of Middle East Respiratory Syndrome (MERS) forced South Korea to cut interest rates on Thursday in the hope of softening the blow to an economy already burdened by slack demand, as authorities reported 14 new cases. Worry in South Korea about the disease has been reflected across the region with dozens of suspected cases being tested in Hong Kong, though none confirmed, and many thousands of people cancelling trips to South Korea. South Korea’s outbreak, with 122 cases and nine deaths, is the largest outside Saudi Arabia and began last month when a 68-year-old South Korean businessman brought the disease back from a trip to the Middle East. He was diagnosed with MERS on May 20 and all subsequent infections have been traced to him, and happened in health facilities. President Park Geun-hye has put off a trip to the United States to deal with the disease as the total number of cases rises daily. The central bank of Asia’s fourth biggest economy said it had to act and cut its policy…