Loo Choon Yong, executive chairman of Raffles Medical Group, is now worth $1.1 billion, according to the Bloomberg Billionaires Index. Photo: Bloomberg
Loo Choon Yong, executive chairman of Raffles Medical Group, is now worth $1.1 billion, according to the Bloomberg Billionaires Index. Photo: Bloomberg

Billionaires: Singapore doctor fighting Covid pandemic boosts personal wealth to $1.1bn