NSW Warns Thousands on Dentist's Virus Exposure

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  • May 13, 2026 at 3:05 AM ET
  • Est. Read: 1 Min
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Key Takeaways

Authorities in New South Wales have warned thousands of patients of a retired dentist to test for bloodborne viruses due to poor infection control practices. The clinic's audit revealed inadequate sterilization and record-keeping issues.

  • NSW Health warns Dr. William Tam's patients may be at low risk of HIV, hepatitis B, and C
  • Up to 5,000 patients potentially exposed over 25 years
  • No patient records available for contact; authorities urge testing as precaution

Australian health authorities have issued an urgent warning to thousands of patients of a retired Sydney dentist, advising them to test for bloodborne viruses due to poor infection control practices at the clinic. According to BBC, The Guardian, and Daily Mail, Dr. William Tam's practice in Strathfield may have exposed patients to hepatitis B, hepatitis C, and HIV over the past 25 years.

NSW Health stated that while the risk is low, an audit conducted in April revealed inadequate sterilization of equipment and poor cleaning practices. The ministry urged all former patients to see a doctor for testing, noting that symptoms may not appear for decades. Dr. Leena Gupta, public health clinical director of the Sydney Local Health District, emphasized the importance of early detection and treatment.

Dr. Tam, who has since retired and been de-registered as a dentist, saw thousands of patients but kept no records that could be used to contact them. This is not the first time such concerns have arisen in Australia; similar incidents occurred in 2018 and last October at other dental clinics in Sydney.

NSW Health has advised former patients to review their FAQs or contact their GP for further information. The health ministry reiterated that effective treatments are available for all three conditions, urging prompt testing as a precautionary measure.

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