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Hygiene intervention reduces contamination of weaning food in Bangladesh

Islam, M. S.; Mahmud, Z. H.; Gope, P. S.; Zaman, R. U.; Hossain, Z.; Mondal, D.; Sharker, M. A.; Islam, K.; Jahan, H.; Bhuiya, A.; Endtz, H. P.; Cravioto, A.; Curtis, V.; Toure, O.; Cairncross, S.
Tropical Medicine & International Health, 2013; 18(3):250-258
Objective This study was conducted to measure the impact of a hygiene intervention on the contamination of weaning food in Bangladesh. Methods Sixty households were selected: 30 study and 30 control households. Samples of weaning food were collected from all the 60 households at baseline and examined for faecal coliforms (FC), faecal streptococci (FS) and Clostridium perfringens (CP) following standard procedures. After cooking, food samples were collected on three occasions before feeding. Following Hazard Analysis Critical Control Point (HACCP) procedures, critical control points were determined. The mothers in the 30 study households were then trained for 4weeks in how to attain the control point conditions. Then, again the food samples were collected and analysed. Results At baseline, weaning foods from study and control households were heavily contaminated with FC and FS. The FC and FS counts were 1.84log10 and 1.92log10 colony-forming unit (cfu)/g, respectively, in the study households, and 0.86log10 and 1.33log10cfu/g, respectively, in the control households in the first feeding. After the intervention, the FC and FS counts in study households had dropped to 0.10log10 and 0.09log10cfu/g, respectively, a statistically significant reduction (P<0.001). Monitoring the sustainability of the behaviour change after 3months showed that the mothers were maintaining food hygiene. Conclusions A hygiene intervention following the HACCP approach reduced the weaning food contamination significantly. Awareness building among mothers about weaning food hygiene could be an important intervention for preventing weaning foodrelated diarrhoea in Bangladesh.