We are now (26 January 2020) in a critical period of prevention and control (of the COVID-19).
Quotes from Ma Xiaowei — Ma Xiaowei
Attribution
Quotes and notes from Wikiquote: Ma Xiaowei (page history), available under CC BY-SA 4.0.
Quotes and notes from Wikiquote: Ma Xiaowei (page history), available under CC BY-SA 4.0.