Thousands of Sydney Dental Patients Urged to Test for HIV, Hepatitis

Key facts

• Thousands of former patients of retired Sydney dentist William Tam are advised to test for bloodborne viruses.
• Potential exposure to HIV, Hepatitis B, and Hepatitis C identified at Tam's Strathfield clinic.
• An audit on April 24 revealed poor infection control and inadequate sterilisation of equipment.
• The Dental Council of NSW flagged concerns during a recent audit.
• Tam practised in Strathfield for over 25 years.
• Authorities have been unable to contact many patients due to incomplete and substandard record-keeping.
• The risk of transmission is considered low, but testing is recommended as a precaution.

Urgent Health Alert Issued for Dental Patients

An urgent public health alert has been issued across Sydney, advising thousands of former patients of a retired dentist to undergo testing for serious bloodborne viruses. The directive targets individuals who received treatment from Dr. William Tam at his clinic in Strathfield, an inner-west suburb, over a period spanning more than two decades. NSW Health has flagged significant concerns regarding infection control practices at the practice, raising the possibility of exposure to HIV, Hepatitis B, and Hepatitis C. While health officials emphasize that the risk of transmission is low, the precautionary measure underscores the potential for serious, long-lasting health impacts associated with these viruses. The alert, issued on a Wednesday, urges all former patients to consult their general practitioner for blood tests. Dr. Tam, who is no longer a registered dentist and has since retired, operated his practice on Albert Road in Strathfield for over 25 years. The call for widespread testing comes after a recent audit by the Dental Council of NSW identified critical deficiencies in the sterilisation of equipment and general cleaning practices.

Audit Reveals Deficiencies in Sterilisation and Cleaning

The catalyst for the public health warning was an audit conducted on April 24, initiated following a complaint from a patient to the Dental Council of NSW. The subsequent review of Dr. Tam's Strathfield clinic uncovered significant issues with infection control and patient record-keeping. Zeina Najjar, a staff specialist in public health for the Sydney Local Health District, stated that the audit identified inadequate sterilisation of equipment and poor cleaning practices. "For this reason, concerns were raised for bloodborne virus transmission," Dr. Najjar explained during a press conference. These findings suggest that contaminated needles or splashes of infected blood or saliva could have potentially passed between patients. Bloodborne viruses spread when infected blood or bodily fluids are transmitted from one person to another, often through unsterilised instruments or inadequate hygiene protocols.

Thousands Unreachable Due to Poor Record-Keeping

A major challenge in managing the potential fallout from Dr. Tam's practice is the state of his patient records. Authorities have been unable to contact a significant portion of the estimated thousands of individuals treated by the dentist due to "substandard and incomplete" record-keeping. Leena Gupta, clinical director of public health for the Sydney Local Health District, noted that the poor record-keeping means health authorities cannot confidently identify all potentially affected individuals. "The poor infection control practices at Dr. Tam’s practice means all former patients may be at low risk of a blood-borne virus infection," Dr. Gupta stated, adding that "there are no records that can be used to contact those patients." This lack of precise information has necessitated a broad public appeal, urging anyone who attended the Strathfield clinic over the past 25 years to come forward for testing. The situation highlights the critical importance of accurate and comprehensive patient record-keeping in healthcare settings.

Low Risk, High Precaution: Understanding the Threat

Despite the serious nature of the viruses involved, health officials have consistently described the risk of infection for most patients as low. However, they stress that individuals who underwent more invasive procedures at Dr. Tam's clinic may face a higher risk of exposure. "The risk is low but we're encouraging testing as a precautionary measure," Dr. Najjar reiterated. This cautious approach is standard practice when potential breaches in infection control are identified, even if the likelihood of transmission is statistically small. Authorities are also keen to highlight that effective treatments are available for all three identified conditions: HIV, Hepatitis B, and Hepatitis C. Many individuals infected with these viruses may not exhibit symptoms for years, making regular testing crucial for early detection and management. Early diagnosis allows for timely access to treatment, which can significantly improve health outcomes and prevent long-term complications.

Broader Context of Dental Clinic Alerts

This incident in Strathfield is not an isolated event within New South Wales. In October of the previous year, a similar alert was issued for patients of another dentist located in the city's southwest. Safuan Hasic, a sole practitioner at a Mortdale clinic, was also found to have not met cleaning standards, prompting a similar precautionary call for patients to undergo testing for bloodborne viruses. These recurring alerts underscore a persistent challenge in maintaining stringent infection control across all healthcare practices. They serve as a reminder of the potential consequences when hygiene protocols are not rigorously followed, even in routine dental procedures. The emphasis on testing extends beyond individual health; it is also vital for preventing onward transmission of these viruses within the community. By identifying infected individuals, public health efforts can focus on containment and ensuring that those affected receive the necessary care and support.

The bottom line

• Thousands of former patients of retired Sydney dentist Dr. William Tam are being advised to get tested for HIV, Hepatitis B, and Hepatitis C.
• The alert follows an audit of Dr. Tam's Strathfield clinic that revealed poor infection control and inadequate equipment sterilisation.
• Incomplete patient records have made it difficult for authorities to identify and contact all potentially exposed individuals.
• While the risk of transmission is considered low, testing is recommended as a precautionary measure for all former patients.
• Effective treatments are available for HIV, Hepatitis B, and Hepatitis C, making early detection through testing crucial.
• This incident highlights the ongoing importance of strict infection control protocols in dental practices.