Tanya R Diefenbach-Elstob1, Patricia M Graves2, Graham W Burgess3, Daniel B Pelowa4, Jeffrey M Warner5. 1. College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, Queensland, 4811, Australia. 2. Centre for Biosecurity in Tropical Infectious Diseases, College of Public Health, Medical & Veterinary Sciences, James Cook University, Cairns, Queensland, 4878, Australia. 3. Centre for Biosecurity in Tropical Infectious Diseases, College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, Queensland, 4811, Australia. 4. Balimo Health Centre, Balimo, Western Province, Papua New Guinea. 5. Centre for Biosecurity in Tropical Infectious Diseases, College of Public Health, Medical & Veterinary Sciences, Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, 4811, Australia jeffrey.warner@jcu.edu.au.
Abstract
BACKGROUND: The Balimo region in Papua New Guinea has previously been identified as melioidosis-endemic with a predilection for children. Where health resources are scarce, seroepidemiology can be used to assess exposure to Burkholderia pseudomallei and therefore risk of acquiring melioidosis. METHODS: Logistic regression was used to determine associations between indirect haemagglutination assay (IHA) seroreactivity with environmental and demographic/cultural factors to aid in determining risk factors associated with exposure to B. pseudomallei in children. RESULTS: Of the 968 participants, 92.9% (899/968) were children, representing the majority of the community school population in the immediate Balimo region. Of these, 24.6% (221/899) were seropositive. Bathing in the lagoon (OR=2.679), drinking from the well or lagoon (OR=1.474), and being a member of the Siboko (OR=1.914) or Wagumisi (OR=1.942) clans were significantly associated with seropositivity. In the multivariate analysis, drinking from a well or lagoon (OR=1.713), and the Siboko (OR=2.341) and Wabadala (OR=2.022) clans were associated with seropositivity. CONCLUSIONS: This study in children supports observations that interactions with groundwater in this region are risk factors in acquiring melioidosis. Public health measures intended to limit this exposure may help reduce the risk of acquiring melioidosis in this remote community. Associations with clan structure may provide more cultural specific insights, however this requires further elucidation.
BACKGROUND: The Balimo region in Papua New Guinea has previously been identified as melioidosis-endemic with a predilection for children. Where health resources are scarce, seroepidemiology can be used to assess exposure to Burkholderia pseudomallei and therefore risk of acquiring melioidosis. METHODS: Logistic regression was used to determine associations between indirect haemagglutination assay (IHA) seroreactivity with environmental and demographic/cultural factors to aid in determining risk factors associated with exposure to B. pseudomallei in children. RESULTS: Of the 968 participants, 92.9% (899/968) were children, representing the majority of the community school population in the immediate Balimo region. Of these, 24.6% (221/899) were seropositive. Bathing in the lagoon (OR=2.679), drinking from the well or lagoon (OR=1.474), and being a member of the Siboko (OR=1.914) or Wagumisi (OR=1.942) clans were significantly associated with seropositivity. In the multivariate analysis, drinking from a well or lagoon (OR=1.713), and the Siboko (OR=2.341) and Wabadala (OR=2.022) clans were associated with seropositivity. CONCLUSIONS: This study in children supports observations that interactions with groundwater in this region are risk factors in acquiring melioidosis. Public health measures intended to limit this exposure may help reduce the risk of acquiring melioidosis in this remote community. Associations with clan structure may provide more cultural specific insights, however this requires further elucidation.
Authors: Premjit Amornchai; Viriya Hantrakun; Gumphol Wongsuvan; Vanaporn Wuthiekanun; Surasakdi Wongratanacheewin; Prapit Teparrakkul; T Eoin West; David P AuCoin; Nicholas P J Day; Paul J Brett; Mary N Burtnick; Narisara Chantratitra; Direk Limmathurotsakul Journal: PLoS Negl Trop Dis Date: 2021-11-02