China’s state-backed coronavirus vaccine protected 86% of people from getting COVID-19 in trials conducted in the United Arab Emirates, reported media outlets including Reuters, citing the UAE’s health ministry.

The vaccine, developed by Sinopharm unit China National Biotec Group Co., has been granted emergency use authorization in the UAE and administered to front-line medical workers, government health officials and a number of senior ministers, the reports said. The shot already has emergency authorization in China and has been administered to hundreds of thousands of people there in recent months.

CNBG did not immediately respond to requests for comment.