Coronavirus: who is Liang Wannian, the renowned mainland Chinese epidemiologist who will guide Hong Kong’s anti-pandemic efforts?

• Liang, 60, helped contain Beijing’s Sars outbreak in 2003 and first wave of Covid-19 infections in Wuhan in 2020
• He is a staunch advocate of the dynamic zero-infection strategy and will lead a team of experts to formulate policy recommendations to Hong Kong government