The challenge of identifying eligible girls for HPV vaccination: HPV mapping data verification in Malawi.

Purpose: Malawi introduced the human papillomavirus (HPV) vaccine nationwide in January 2019, with a target population of nine-year-old girls. Early in rollout, some health facilities reported stockouts, raising questions about the accuracy of the age eligibility of girls registered during the initial population mapping exercise. Mapping results showed that the estimated number of nine-year-old girls registered for vaccination was significantly higher than National Statistical Office (NSO) estimates, resulting in questions about enumeration of the target population.

Correction: Costs of continuing RTS,S/ASO1E malaria vaccination in the three malaria vaccine pilot implementation countries.

[This corrects the article DOI: 10.1371/journal.pone.

Costs of continuing RTS,S/ASO1E malaria vaccination in the three malaria vaccine pilot implementation countries.

Background: The RTS,S/ASO1E malaria vaccine is being piloted in three countries-Ghana, Kenya, and Malawi-as part of a coordinated evaluation led by the World Health Organization, with support from global partners. This study estimates the costs of continuing malaria vaccination upon completion of the pilot evaluation to inform decision-making and planning around potential further use of the vaccine in pilot areas.

Methods: We used an activity-based costing approach to estimate the incremental costs of continuing to deliver four doses of RTS,S/ASO1E through the existing Expanded Program on Immunization platform, from each government's perspective.