South Korea’s economy recorded its weakest expansion in six years in the second quarter, battered by a deadly virus outbreak and poor exports, while Japan reported strengthening export growth in June but concern remained about how shipments to China might be affected by its slowing economy. The MSCI’s broadest index of Asia-Pacific shares outside Japan slipped 0.2 percent but still holding well above a near 1-1/2 year low hit on July 8.