Health officials are sounding the alarm over a rising diphtheria outbreak in Australia, the largest since 1991. This alarming trend highlights the ongoing challenges in providing equitable healthcare access, particularly for Indigenous communities. The recent surge in cases, with a disproportionate impact on Aboriginal and Torres Strait Islander people, underscores the need for urgent action and a comprehensive response strategy.
The outbreak's geographical spread is concerning, with cases reported in multiple states, including the Northern Territory, Western Australia, South Australia, and Queensland. The proximity of these affected areas to each other and the potential for cross-border movement of families and communities further exacerbates the risk. Manjit Sekhon, CEO of Gidgee Healing, warns that Far North Queensland is particularly vulnerable due to its close proximity to affected regions.
The strain of diphtheria circulating in Australia appears to have emerged recently, though it may have been present for some time. The Australian Centre for Disease Control (CDC) is working to understand the factors driving the outbreak, noting that sporadic cases are not uncommon but the current spread is unusual. Milena Dalton, head of immunisation at the Burnett Institute, highlights 'health system gaps' in providing remote communities with access to vaccinations as a key issue.
Diphtheria is a life-threatening, highly contagious bacterial infection that can be prevented through vaccination and treated with antibiotics. There are two strains: respiratory and cutaneous. Respiratory diphtheria affects the nose, throat, and airways, while cutaneous diphtheria affects the skin. The respiratory strain spreads through droplets from coughing or sneezing or direct contact with infected wounds. Even with treatment, one in ten people with respiratory symptoms dies.
Historically, diphtheria was a leading cause of childhood death globally, with over 4,000 Australians dying from the disease between 1926 and 1935. However, vaccination efforts in the 1930s and subsequent decades have largely eliminated the disease in Australia. The largest previous outbreak since 1991 occurred in 2022, with 25 cases recorded in Queensland.
State leaders are responding to the outbreak by emphasising the importance of vaccination and contact tracing. Western Australia's Health Minister, Meredith Hammat, urges residents to ensure their vaccinations are up to date, particularly those who are older. South Australia's Health Minister, Blair Boyer, provides travel advice and encourages vulnerable individuals to seek diphtheria vaccinations from their GPs. Queensland's government has made diphtheria-toxoid vaccines free for First Nations people aged 20 and older, with Aboriginal health services promoting the vaccine.
The federal government, under Health Minister Mark Butler, is developing a support package aimed at boosting vaccination rates, including additional vaccines and a surge workforce. This response is crucial to containing the outbreak and preventing further spread, especially in high-risk communities.
The outbreak highlights the ongoing disparities in healthcare access and the need for a comprehensive, culturally sensitive approach to public health. It also underscores the importance of community engagement and education in combating vaccine hesitancy and ensuring that everyone, regardless of their background, has access to the necessary resources and information to protect their health.
