Community Perceptions Regarding use of HIV Molecular Epidemiology for Public Health in Victoria, Australia: Qualitative Findings.

Molecular epidemiology (ME) is a field that integrates molecular biology techniques with traditional epidemiological methods to study the distribution, determinants, and dynamics of disease. In the context of HIV, ME involves analysing genetic sequences of the virus to understand patterns of transmission, evolution, and the relationships between social, behavioural, and biological factors that influence transmission. This holds great promise in the global effort to further reduce HIV transmission, although its use raises significant ethical issues. ME is not currently used in Australia's public health response to HIV, although experiences from other countries emphasize the importance of community consultation and support to avoid unintended negative consequences, such as deterring individuals from accessing sexual health services. This article explores the perspectives of twenty-three participants, recruited through HIV/sexual health-related organizations in Victoria, Australia, via nineteen semi-structured interviews and one focus group. Participants included people who regularly test for sexually transmissible infections (STIs) and people diagnosed with HIV and/or syphilis/gonorrhoea. Participants often reported vague or no prior understanding of ME (19/23; 82.6 per cent); however, many of those with vague or no understanding were supportive (16/19; 84.2 per cent). A subset of participants raised concerns, including those related to privacy risks, misuse of data, and the disproportionate impact on marginalized groups. These findings reinforce the need for meaningful community engagement and safeguards for potential ethical use of ME in Australia.