The location of Australian Buruli ulcer lesions-Implications for unravelling disease transmission
Web of Science
AuthorYerramilli, A; Tay, EL; Stewardson, AJ; Kelley, PG; Bishop, E; Jenkin, GA; Starr, M; Trevillyan, J; Hughes, A; Friedman, ND; ...
Source TitlePLoS Neglected Tropical Diseases
PublisherPUBLIC LIBRARY SCIENCE
AffiliationMedicine and Radiology
Document TypeJournal Article
CitationsYerramilli, A., Tay, E. L., Stewardson, A. J., Kelley, P. G., Bishop, E., Jenkin, G. A., Starr, M., Trevillyan, J., Hughes, A., Friedman, N. D., O'Brien, D. P. & Johnson, P. D. R. (2017). The location of Australian Buruli ulcer lesions-Implications for unravelling disease transmission. PLOS NEGLECTED TROPICAL DISEASES, 11 (8), https://doi.org/10.1371/journal.pntd.0005800.
Access StatusOpen Access
Open Access at PMChttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC5584971
BACKGROUND: Buruli ulcer (BU), caused by Mycobacterium ulcerans, is increasing in incidence in Victoria, Australia. To improve understanding of disease transmission, we aimed to map the location of BU lesions on the human body. METHODS: Using notification data and clinical records review, we conducted a retrospective observational study of patients diagnosed with BU in Victoria from 1998-2015. We created electronic density maps of lesion locations using spatial analysis software and compared lesion distribution by age, gender, presence of multiple lesions and month of infection. FINDINGS: We examined 579 patients with 649 lesions; 32 (5.5%) patients had multiple lesions. Lesions were predominantly located on lower (70.0%) and upper (27.1%) limbs, and showed a non-random distribution with strong predilection for the ankles, elbows and calves. When stratified by gender, upper limb lesions were more common (OR 1·97, 95% CI 1·38-2·82, p<0·001) while lower limb lesions were less common in men than in women (OR 0·48, 95% CI 0·34-0·68, p<0·001). Patients aged ≥ 65 years (OR 3·13, 95% CI 1·52-6·43, p = 0·001) and those with a lesion on the ankle (OR 2·49, 95% CI 1·14-5·43, p = 0·02) were more likely to have multiple lesions. Most infections (71.3%) were likely acquired in the warmer 6 months of the year. INTERPRETATION: Comparison with published work in Cameroon, Africa, showed similar lesion distribution and suggests the mode of M. ulcerans transmission may be the same across the globe. Our findings also aid clinical diagnosis and provide quantitative background information for further research investigating disease transmission.
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