How to read the dental clinic distinfection record?

NSW authorities are asking anyone who was treated at James Pok-Yan Ng's dental surgery in Haberfield to visit their GP to get tested for blood-borne viruses. Interview dentist Changhong to talk about how to read the dental clinic disinfection record.

Up to 10,000 patients at a Sydney dental surgery may have been exposed to viruses including hepatitis B, C and HIV over more than three decades. Source: AAP