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Australian Trachoma Surveillance Report 2024

Trachoma is the world’s leading infectious cause of preventable blindness and linked to poor living and environmental health conditions. In Australia, trachoma has remained a public health problem in remote Indigenous communities in the Northern Territory, South Australia, and Western Australia. To seek formal validation by the World Health Organization (WHO) of the elimination of trachoma as a public health problem, Australia has needed to maintain active trachoma prevalence under 5% in children for at least 2 years in each formerly endemic jurisdiction (state/territory). 

Australia must also demonstrate that the prevalence of previously undiagnosed trachomatous trichiasis, the severe advanced blinding stage caused by repeated infection, remains below 0.2% in people 15 years and over. The 2024 surveillance data show that Australia has met these criteria and is therefore eligible to apply to WHO for global recognition of elimination of trachoma as a public health problem.
 

Key findings
  • In 2024, screening staff used WHO grading criteria to assess trachoma in 86 communities.
  • Overall trachoma prevalence, which includes estimates from all communities ever considered at-risk, remained below 5% at 2.1% in Northern Territory, 0% in South Australia, and 1.3% in Western Australia.
  • Trachomatous trichiasis ‘previously unknown to the health system’ continues to be low, with only 9 newly identified cases reported.
  • ‘Elimination as a public health problem’ as defined by WHO relates to overall state/territory prevalence. Some remote communities continue to record trachoma at levels that indicate ongoing risk and the potential for resurgence of infection elsewhere.
  • Sustaining elimination of trachoma as a public health problem relies on strengthening health promoting environments, particularly improving the provision of appropriate housing in remote areas and ongoing maintenance of home health hardware, including water and sanitation facilities.
  • Principles of Indigenous leadership, local ownership and community accountability must guide ongoing prevention and control strategies to maintain achievements in trachoma control.