ABSTRACT
Objective: To determine the level of dengue prevention practices among wet market traders in a Malaysian district and their associated socio-ecological factors including individual, relationships, community and societal factors. Methods: A cross-sectional study involving 246 wet market traders was conducted in a district in Perak state in northwest Malaysia between September 2018 to June 2019. Participants were selected through stratified sampling from four wet markets in Hilir Perak district. Data on dengue prevention practices and associated socio-ecological characteristics were collected using a validated interview-based questionnaire. The data were analyzed using SPSS version 25. Multiple logistic regression was performed to identify socio-ecological determinants of dengue prevention practices among wet market traders in Hilir Perak District. Results: From the total number of respondents, 78% had high dengue prevention practices. Higher dengue prevention practices were associated with owners of wet market shoplots compared to employed workers (adjusted OR 4.18, 95% CI 1.78, 9.85), high perceived susceptibility (adjusted OR 6.93, 95% CI 3.02, 15.92), high familial support (adjusted OR 3.65, 95% CI 1.25, 10.64), and high perceived dengue prevention and control laws and regulations (adjusted OR 3.24, 95% CI 1.44, 7.32). Conclusions: Dengue prevention practices were associated not only with individual determinants but also with other determinants from relationships to societal level which must be considered in planning or evaluating current dengue control programs.
ABSTRACT
@#Aim:This study aims to assess the wet market wastewater efficiency as Scenedesmussp. biomass production medium based on the physical and chemical characteristic as well as the biomass compositions. Methodology and results:The experiments were set up in transparent glass tank (40 L) containing 20 L of wastewater. The efficiency of different concentrations (10, 15, 20 and 25%) of wet market wastewater diluted with distilled water was compared to Bold Basal Medium (BBM). The biomass was harvested after 12 days of the incubation period by centrifugation. The quantity of biomass yielded was estimated based on the microalgae cell concentrations, while quality of biomass yield was determined by GC-MS. The nutrient contents of the raw wet market wastewater were in the range required for microalgae growth. The wastewater with 20% of dilution exhibited high efficiency for Scenedesmussp. growth in comparison to BBM (4×107vs.1 ×106cell/mL respectively). The main compounds in the microalgae biomass included cycloheptane, cyclododecanol, 1-ethenyl-acetate, 2-trifluoroacetoxypentadecane and 9-octadecenoic acid (Z)-, methyl ester.Conclusion, significance and impact of study:Scenedesmussp. biomass can be produced using the wet market wastewate