Introduction: Health education or institutional talks mitigate infant diarrhea incidence. Among the country, Yucatán is the state with the highest diarrhea incidence rates; the impact of the talks, a health program, over diarrhea incidence is insufficiently studied. Objective: Analyze the talk access role in order to prevent infant diarrhea incidence. Methodology: A sampling survey was used among 151 household, 187 children under 5 years old were found. The study was carried out over three sampling segments in the coastal zone with difference environmental conditions: Progreso (port, urban-concentrated), Celestún (urban, tourism, biosphere reserve) and Río Lagartos (rural, tourism, biosphere reserve). Diarrhea lapsic prevalence rate was estimated, the cases taken into account were diarrheas occurred 15 days immediate before the survey.  Descriptive, bivariate, stratified analyses and binary logistic regression were done. Results: Diarrhea lapsic prevalence rate was recorded as 13.37% (n= 25 cases). Multivariate logistic analysis showed the talks significant protective impact (b=-2.105; RM=0.163; and r= 0.018) with an effect equivalent to 6.25 times less risk of presenting diarrhea episodes. Conclusion: The talks, as a health policy, have impact over the diarrheas decrease, especially if these are carried out among the social program beneficiaries.

Keywords: Health education, health policy, government program Oportunidades, coastal populations, period prevalence, childhood diarrhea, Gulf of Mexico, Yucatán, Mexico