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Risks for Ross River virus disease in tropical Australia
David Harley1, Scott Ritchie, Chris Bain
1Queensland Centre for Intellectual and Developmental Disability, School of Population Health, University of Queensland, Mater Hospital, Brisbane, 4101, Queensland, Australia. D.Harley@uq.edu.au
International Journal of Epidemiology
|January 22, 2005
Summary
Protective measures like mosquito coils and light clothing significantly reduce Ross River virus (RRV) disease risk. Camping increases risk, highlighting the need for public education on individual protection against this arbovirus.
Area of Science:
- Epidemiology
- Public Health
- Arbovirology
Background:
- No prior analytical studies identified individual risks for Ross River virus (RRV) disease.
- RRV is a significant arbovirus concern in Australia.
Purpose of the Study:
- Determine individual risk and protective factors for RRV disease.
- Assess the case-control study design for arbovirus risk analysis.
Main Methods:
- Prospective matched case-control study.
- Conducted in high-incidence areas of tropical Queensland, Australia.
- Focused on new community cases of RRV disease.
Main Results:
- Mosquito coils, repellents, and citronella candles reduced RRV risk by at least 2-fold.
- A dose-response relationship was observed for the number of protective measures used.
- Light-colored clothing decreased risk 3-fold, while camping increased risk 8-fold.
Conclusions:
- Identified substantial and statistically significant individual risks and protective factors for RRV disease.
- Findings support educational programs for personal protection against RRV in Australia.
- Demonstrated the utility of case-control studies for arbovirus risk assessment.
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