[Coverage, mapping and barriers to complete vaccination for age among children under 5 years in 2021: case of Adjara-Hounvè and Ahouicodji villages in southern Benin].

Background: Vaccination is a protective measure against infectious diseases and remains one of the best investments in public health. Some African countries are still struggling to reach the required child immunization coverage. Several factors are responsible for limiting immunization coverage.

[Mapping, profile and training of immunization stakeholders, Benin, 2020].

Introduction: The Benin Immunization and Logistic Directorate commissioned this study to provide evidence-based data to improve the performance of the Expanded Programme on Immunization. The objectives were to identify immunization stakeholders, describe their profile, their geographical distribution and determine their training needs.

Methods: In December 2020, we conducted a census of Benin's immunization stakeholders via their administrative files and telephone interviews.

Assessment of COVID-19 Vaccine Acceptance and Its Associated Factors during the Crisis: A Community-Based Cross-Sectional Study in Benin.

Background: Having a maximum number of people vaccinated was the objective to control the COVID-19 pandemic. We report in this manuscript the factors associated with the willingness to be vaccinated against COVID-19 during the pandemic period.

Methods: From April to May 2022, a community-based cross-sectional survey was performed.

The economic impact of the switch from single- to multi-dose PCV13 vial in Benin.

Background: Little is known on the economic implications of multi-dose 13 valent pneumococcal conjugate vaccine (PCV13) introduction in expanded program on immunization (EPI). Based on evidence of PCV13's reduced pressure on vaccine cold chain, Benin, a third world country in West Africa, introduced the multi-dose PCV13 starting in April 2018 in its EPI program in replacement of the single-dose presentation. The objective of this study was to conduct a rapid assessment of the costs and economic impact of switching from single- to multi-dose PCV13 vial in Benin.

A scorecard of progress towards measles elimination in 15 west African countries, 2001-19: a retrospective, multicountry analysis of national immunisation coverage and surveillance data.

Background: The WHO Regional Office for the Africa Regional Immunization Technical Advisory Group, in 2011, adopted the measles control and elimination goals for all countries of the African region to achieve in 2015 and 2020 respectively. Our aim was to track the current status of progress towards measles control and elimination milestones across 15 west African countries between 2001 and 2019.

Methods: We did a retrospective multicountry series analysis of national immunisation coverage and case surveillance data from Jan 1, 2001, to Dec 31, 2019.

Decision making process, programmatic and logistic impact of the transition from a single-dose vial to a multi-dose vial of the 13-valent pneumococcal vaccine in Benin.

Background: Benin, a country eligible for Gavi support, changed the presentation of the 13-valent pneumococcal vaccine (PCV13) from the single-dose vial (SDV) to the multi-dose vial (MDV). The present work aims to evaluate the process of making this decision as well as programmatic and logistic impacts.

Methods: WHO protocol for post-introduction evaluation (PIE) was used.

Introduction of multi-dose PCV 13 vaccine in Benin: from the decision to vaccinators experience.

Background: In 2011, Benin introduced the 13-valent pneumococcal conjugated vaccine (PCV13), in a single-dose vial, into its Expanded Programme for Immunisation (EPI) with support from Gavi. In April 2018, with the support of the Agence de Médecine Préventive Afrique (AMP) and other technical and financial partners, the single-dose vial was transitioned to a four-dose vial. Here we describe the decision-making process and the experience of the vaccinators during the change.

Cost-effectiveness analysis of routine immunization and supplementary immunization activity for measles in a health district of Benin.

Background: This study was carried out at district level to describe the cost structure and measure the effectiveness of delivering supplementary immunization activity (SIA) and routine immunization (RI) for measles in Benin, a country heavily affected by this disease.

Methods: This cost-effectiveness study was cross sectional and considered 1-year time horizon. RI consists to vaccinate an annual cohort of children aged 0-1 year old and SIA consists to provide a second dose of measles vaccine to children aged 0-5 years old in order to reach both those who did not seroconvert and who were not vaccinated through RI.