The European Medicines Agency (EMA) has started a rolling review of China’s Sinovac COVID-19 vaccine, the EU’s top drug regulator announced Tuesday, and experts said that once the vaccine is approved, China will further fulfill its international responsibilities as a major power and provide support to the international community in the pandemic fight, the Chinese media reported.According to the Chinese media , Sinovac and another China-produced COVID-19 jab, Sinopharm, are also under WHO assessment for emergency use, and results are anticipated in a week.