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In this paper, we have assessed the incidence and determinants of pesticide poisoning among rice farmers in Vietnam's Mekong Delta. Blood cholinesterase tests suggest that the incidence of poisoning from exposure to organophosphates and carbamates is quite high in Vietnam. Using the medical test results as benchmarks, we find that farmers' self-reported symptoms have very weak associations with actual poisoning.Regression analysis of blood tests reveals a lower incidence of poisoning for farmers who avoid the most toxic pesticides and use protective items. We also find very large provincial differences in poisoning incidence after we control for individual factors. Our results highlight the potential importance of negative externalities, and suggest that future research on pesticide-related damage should include information on local water, air and soil contamination.

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Xe-om (motorbike-taxi) is a very popular form of passengers transportation in Vietnam. However, xe-om riders have little knowledge about quality helmet, ways of correct use and the risks of drink driving. This initiative provided education on helmet use and drink-driving prevention for them at Hoa An Bus Station, Da Nang City, aiming at improving their own and passengers' safety. Pre and post evaluations were conducted to assess the changes in KAP of xe-om riders after interventions.Activities120 xe-om riders were targeted for interventions from February to October 2009. Xe-om riders were given trainings and practice on selecting quality helmets and its correct use. Risks of drink driving were also provided through talks, and visual education materials. Hoa An bus station management and health staff provided random monitoring & day-to-day enforcement of helmet use.ResultsHelmet wearing was maintained at 100% among xe-om riders. Rate of drink driving reduced to 6.7% (2009) from 67.8% (2008). Knowledge on selection of quality helmet has also increased sharply. Important quality criteria such as EPS liner or the shell have increased from 26.27% to 97.45% and 13.56% to 100%, respectively. Knowledge of correct helmet use such as wearing upright on head with straps fitted below the chin has increased from 36% to over 95%.ConclusionsSelected education and communication activities for target group coupled with close monitoring and enforcement can bring positive changes to the practice of xe-om riders.