Capturing Household Structure and Mobility within and between Remote Aboriginal Communities in Northern Australia...

Area of Science:

• Epidemiology
• Public Health
• Anthropology

Background:

• Cultural practices and development influence household structures and population mixing.
• Some populations utilize multiple dwellings for households, impacting infectious disease transmission.
• Existing demographic data collection tools do not capture multi-dwelling household structures.

Purpose of the Study:

• To investigate household structures and contact patterns in a remote Aboriginal Australian community.
• To assess the impact of multi-dwelling households on infectious disease transmission modeling.

Main Methods:

• The Contact And Mobility Patterns in remote Aboriginal Australian communities (CAMP-remote) pilot study.
• Recruited Aboriginal mothers with infants in a remote northern Australian community.
• Utilized monthly iPad-based contact surveys from June to October 2018.

Main Results:

• Thirteen mother-infant pairs completed 69 study visits, reporting sleeping in 28 dwellings.
• Median dwelling occupancy was ten people; participants used a median of three dwellings.
• Travel out of the community was common (median 28% monthly); models including this data amplified disease spread estimates.

Conclusions:

• Inaccurate infectious disease models may result from a lack of data on multi-dwelling households.
• The efficacy of public health interventions may be compromised without accounting for these complex household structures.
• Improved data collection methods are needed to capture detailed mixing patterns in such communities.