The missing voices of Indigenous Australians in the social, cultural and historical experiences of tuberculosis: a systematic and integrative review

Inequalities between Aboriginal and non-Aboriginal Australians seen through the lens of oral health: time to change focus

Inequitable social environments can illustrate changes needed in the social structure to generate more equitable social relations and behaviour. In Australia, British colonization left an intergenerational legacy of racism against Aboriginal people, who are disadvantaged across various social indicators including oral health. Aboriginal Australian children have poorer health outcomes with twice the rate of dental caries as non-Aboriginal children. Our research suggests structural factors outside individual control, including access to and cost of dental services and discrimination from service providers, prevent many Aboriginal families from making optimum oral health decisions, including returning to services. Nader's concept of 'studying up' redirects the lens onto powerful institutions and governing bodies to account for their role in undermining good health outcomes, indicating changes needed in the social structure to improve equality. Policymakers and health providers can critically reflect on structural advantages accorded to whiteness in a colonized country, where power and privilege that often go unnoticed and unexamined by those who benefit incur disadvantages to Aboriginal Australians, as reflected in inequitable oral health outcomes. This approach disrupts the discourse placing Aboriginal people at the centre of the problem. Instead, refocusing the lens onto structural factors will show how those factors can compromise rather than improve health outcomes. This article is part of the theme issue 'Evolutionary ecology of inequality'.

Tuberculosis care designed with barramarrany (family): Participatory action research that prioritised partnership, healthy housing and nutrition

Issue addressed.

Ongoing tuberculosis (TB) transmission in Aboriginal communities in Australia is unfair and unacceptable. Redressing the inequity in TB affecting Aboriginal peoples is a priority in Australia's Strategic Plan for Tuberculosis Control. Improving TB care needs not to just identify barriers but do something about them. Privileging the voices of Aboriginal people affected by TB is essential to identify effective and enabling strategies.

Tuberculosis in Australia's tropical north: a population-based genomic epidemiological study

BACKGROUND

The Northern Territory (NT) has the highest tuberculosis (TB) rate of all Australian jurisdictions. We combined TB public health surveillance data with genomic sequencing of Mycobacterium tuberculosis isolates in the tropical 'Top End' of the NT to investigate trends in TB incidence and transmission.

METHODS

This retrospective observational study included all 741 culture-confirmed cases of TB in the Top End over three decades from 1989-2020. All 497 available M. tuberculosis isolates were sequenced. We used contact tracing data to define a threshold pairwise SNP distance for hierarchical single linkage clustering, and examined putative transmission clusters in the context of epidemiologic information.

FINDINGS

There were 359 (48%) cases born overseas, 329 (44%) cases among Australian First Nations peoples, and 52 (7%) cases were Australian-born and non-Indigenous. The annual incidence in First Nations peoples from 1989-2019 fell from average 50.4 to 11.0 per 100,000 (P<0·001). First Nations cases were more likely to die from TB (41/329, 12·5%) than overseas-born cases (11/359, 3·1%; P<0·001). Using a threshold of ≤12 SNPs, 28 clusters of between 2-64 individuals were identified, totalling 250 cases; 214 (86%) were First Nations cases and 189 (76%) were from a remote region. The time between cases and past epidemiologically- and genomically-linked contacts ranged from 4·5 months to 24 years.

INTERPRETATION

Our findings support prioritisation of timely case detection, contact tracing augmented by genomic sequencing, and latent TB treatment to break transmission chains in Top End remote hotspot regions.

Tuberculosis care cascade for the indigenous population in Colombia: an operational research study

Objective.

Construct and evaluate the care cascade for pulmonary tuberculosis in the indigenous population of the department of Cauca (Colombia) and identify existing gaps.

Methods.

Mixed-methods sequential explanatory design. In the first phase, the pulmonary tuberculosis care cascade for the indigenous population of Cauca was evaluated. Data were obtained from secondary sources and all cases diagnosed from 1 January 2016 to 31 December 2017 were included. In the second phase, semi-structured interviews were done with nine program coordinators and 11 nursing auxiliaries to explain identified gaps. Absolute and percentage values were estimated for each of the steps and gaps in the care cascade. Quantitative and qualitative results were triangulated.

Results.

In 2016 and 2017, an estimated 202 patients with respiratory symptoms were expected to be positive and 106 cases of pulmonary tuberculosis were reported among the indigenous population of the department of Cauca. A gap of 47.5% was found for diagnosis, since only 52.5% of subjects were diagnosed in health services. This gap was explained by poor quality of samples and flawed smear techniques; flaws in correct identification of patients with respiratory symptoms; limited access to diagnostic methods, such as culture and molecular tests; and limited training and high turnover of personnel in health service provider institutions.

Conclusions.

The tuberculosis control program should focus actions on bridging the gap in case detection in the indigenous population.

Climate change and infectious diseases in Australia's Torres Strait Islands

OBJECTIVE

This research seeks to identify climate-sensitive infectious diseases of concern with a present and future likelihood of increased occurrence in the geographically vulnerable Torres Strait Islands, Australia. The objective is to contribute evidence to the need for adequate climate change responses.

METHODS

Case data of infectious diseases with proven, potential and speculative climate sensitivity were compiled.

RESULTS

Five climate-sensitive diseases in the Torres Strait and Cape York region were identified as of concern: tuberculosis, dengue, Ross River virus, melioidosis and nontuberculous mycobacterial infection. The region constitutes 0.52% of Queensland's population but has a disproportionately high proportion of the state's cases: 20.4% of melioidosis, 2.4% of tuberculosis and 2.1% of dengue.

CONCLUSIONS

The Indigenous Torres Strait Islander peoples intend to remain living on their traditional country long-term, yet climate change brings risks of both direct and indirect human health impacts. Implications for public health: Climate-sensitive infections pose a disproportionate burden and ongoing risk to Torres Strait Islander peoples. Addressing the causes of climate change is the responsibility of various agencies in parallel with direct action to minimise or prevent infections. All efforts should privilege Torres Strait Islander peoples' voices to self-determine response actions.

[Tuberculosis care cascade for the indigenous population in Colombia: an operational research studyCascata de atenção da tuberculose para os povos indígenas na Colômbia: pesquisa operacional]

Objetivo

Construir y evaluar la cascada de atención de la tuberculosis pulmonar en la población indígena del departamento del Cauca (Colombia) e identificar las brechas existentes.

Métodos

Metodología mixta con diseño secuencial explicativo. En la primera fase se evaluó la cascada de atención de la tuberculosis pulmonar para la población indígena del Cauca. Se obtuvieron datos de fuentes secundarias y se incluyeron todos los casos diagnosticados entre el 1 de enero del 2016 y el 31 de diciembre de 2017. En la segunda fase, se aplicaron entrevistas semiestructuradas a nueve coordinadores de programa y 11 auxiliares de enfermería para explicar las brechas identificadas. Se estimaron los valores absolutos y porcentuales en cada uno de los pasos y las brechas de la cascada de atención. Se triangularon los resultados cuantitativos y cualitativos.

Resultados

Durante 2016 y 2017 se estimaron 202 sintomáticos respiratorios esperados positivos y se notificaron 106 casos de tuberculosis pulmonar en la población indígena del departamento del Cauca. Se encontró una brecha de 47,5% para el diagnóstico, ya que solo 52,5% de los sujetos recibieron el diagnóstico en los servicios de salud. Las explicaciones a esta brecha fueron la mala calidad de muestras y fallas en la técnica del extendido, fallas en la correcta identificación del sintomático respiratorio, acceso limitado a métodos diagnósticos como cultivo y pruebas moleculares, así como capacitación escasa y rotación alta de personal al interior de las instituciones prestadoras de servicios de salud.

Conclusiones

Las acciones del programa de control de tuberculosis deben enfocarse en reducir la brecha de detección de casos en la población indígena.

Voices behind the Statistics: A Systematic Literature Review of the Lived Experience of Rheumatic Heart Disease

In Australia, Aboriginal children almost entirely bear the burden of acute rheumatic fever (ARF) which often leads to rheumatic heart disease (RHD), a significant marker of inequity in Indigenous and non-Indigenous health experiences. Efforts to eradicate RHD have been unsuccessful partly due to lack of attention to voices, opinions and understandings of the people behind the statistics. This systematic review presents a critical, interpretive analysis of publications that include lived experiences of RHD. The review approach was strengths-based, informed by privileging Indigenous knowledges, perspectives and experiences, and drawing on Postcolonialism and Critical Race Theory. Fifteen publications were analysed. Nine themes were organised into three domains which interact synergistically: sociological, disease specific and health service factors. A secondary sociolinguistic analysis of quotes within the publications articulated the combined impact of these factors as ‘collective trauma’. Paucity of qualitative literature and a strong biomedical focus in the dominant narratives regarding RHD limited the findings from the reviewed publications. Noteworthy omissions included: experiences of children/adolescents; evidence of Indigenous priorities and perspectives for healthcare; discussions of power; recognition of the centrality of Indigenous knowledges and strengths; and lack of critical reflection on impacts of a dominant biomedical approach to healthcare. Privileging a biomedical approach alone is to continue colonising Indigenous healthcare.