The COVID-19 pandemic in francophone West Africa: from the first cases to responses in seven countries

Background: In early March 2020, the COVID-19 pandemic hit West Africa. Countries in the region quickly set up crisis management committees and organised drastic measures to stem the spread of the coronavirus. The objective of this article is to analyse the epidemiological evolution of COVID-19 in seven Francophone West African countries (Benin, Burkina Faso, Côte d'Ivoire, Guinea, Mali, Niger, Senegal) as well as the public health measures decided upon during the first four months of the pandemic. Methods: Our method is based on quantitative and qualitative data from the pooling of information from a COVID-19 data platform and collected by a network of interdisciplinary collaborators present in the seven countries. Descriptive and spatial analyses of quantitative epidemiological data and content analyses of qualitative data on public measures and management committees were performed. Results: Attack rates for COVID-19 range from less than 10 per 100,000 inhabitants (Benin) to more than 45 per 100,000 inhabitants (Guinea). The spatio-temporal analysis shows three phases of incidence clusters. By the end of June 2020, case numbers had plateaued in some countries (Burkina Faso, Niger, Mali) while others continued to see the number of infections increasing (Benin, Côte d'Ivoire, Guinea, Senegal). The countries all reacted quickly to the crisis, in some cases before the first reported infection, and implemented public measures in a relatively homogeneous manner. None of the countries implemented country-wide lockdowns, but in some cases implemented partial or local containment measures. At the end of June 2020, countries began to lift certain restrictive measures, sometimes under pressure from the general population or from certain economic sectors. All the countries have adopted response plans and organized multiple crisis management committees, although their content and functioning have not always been transparent or easy to understand. Conclusion: Much research remains to be done in West Africa. It will be necessary to better understand the dynamics of the pandemic, which appears to be largely under control, as well as the effectiveness and implementation of the state responses, which have been rapidly formulated.