PYEONGCHANG, South Korea _ The norovirus outbreak among staff and volunteers at the Pyeongchang Olympics has increased to 244 cases, the Korean Centers for Disease Control said Thursday.
Investigators traced the outbreak to contaminated water used in food preparation at the Horeb Youth Center.
Fifty-six people remain under quarantine. The rest have returned to work.
The Horeb Youth Center had 108 cases with an additional 77 cases in the coastal city of Gangneung and 59 cases in the mountain cluster around Pyeongchang.