Tendances épidémiologiques et stratégies de lutte contre la dengue au Burkina Faso de 2013 à 2020 : une revue systématique

Abstract

Background: Dengue is now a public health concern in tropical and subtropical regions of the world due to the rapid increase in its incidence and the appearance of epidemic outbreaks.
Methods: A systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines to describe the dengue disease epidemiology in Burkina Faso reported between 2013 and 2021. Thirty of
172 available search fulfilled the inclusion criteria defined in for the review.
Results: During the study period 34 969 suspected dengue fever cases had been notified nationally. Outbreak were observed in 2013, 2016 and 2017. The central region was the most affected. The average age ranged from 26.1 to 35.9 years and
the rex ratio from 1.04 to 1.24. A seroprevalence varying from 65.3% to 67.2% had been reported in Ouagadougou. All four DENV serotypes have been shown to circulate with predominance of DENV-2 and DENV-3 during outbreak and nonoutbreak
period respectively. Community-based interventions have increased people's knowledge levels and reduced the risk of exposure to the bite of Aedes aegypti, which remains susceptible to organophosphate insecticides.
Conclusion: Since 2013, dengue has gained importance in both the research sphere and in health policy programs in Burkina Faso. Recent improvements in the national surveillance system have contributed to an improvement in epidemiological
knowledge of dengue. Nevertheless, there are still epidemiological gaps that need to be filled by further studies, benefiting from the improved data from the sentinel dengue surveillance sites in Burkina Faso, and allowing the development of targeted
control strategies.