An undated video of a woman claiming to be in the know of the "real" situation of the novel coronavirus outbreak in central China's Wuhan has been making the rounds online since January 25. In this episode of Facts Tell, we unpack the claims and see how they stack up against official data and international COVID-19 research.

On-camera reporter: Nadim Diab

Scriptwriter: Nadim Diab

Video editor: Yang Shengjie, Shen Anqi

Filmed by Yang Shengjie, Lan Haowei

Chief editor: Wang Xin

Producer: Wen Yaru

Director: Zhang Shilei

Supervisor: Fan Yun