China's top infectious diseases expert Dr Zhang Wenhong was recently embroiled in an alleged academic fraud case but investigations have cleared his name later on. The investigation came after he put forward the view of "living with the virus", which is at odds with the official stance for achieving zero-Covid. Who protected Dr Zhang from punishment? Was it public opinion, the city of Shanghai or Dr Zhang's impeccable moral standards? Will this deter professionals from speaking the truth in the future?