Incidence of possible serious bacterial infection in young infants in the three high-burden countries of the Democratic Republic of the Congo, Kenya, and Nigeria: A secondary analysis of a large, multi-country, multi-centre clinical trial.

"data availability: all relevant data are presented within the paper. funding: the study was funded by the bill and melinda gates foundation through grant no oppgh5299"

"Disclosure of interest: The authors completed the ICMJE Disclosure of Interest Form (available upon request from the corresponding author) and disclosed the following activities and/or relationships: YBN is a staff member of the World Health Organization. The expressed views and opinions do not necessarily express the policies of the World Health Organization."

"Funding: The study was funded by the Bill and Melinda Gates Foundation through grant No. OPPGH5299 to the World Health Organization. The funder had no role in study design, data collection and analysis, the decision to publish, or the preparation of the manuscript."

"Registration: Australian New Zealand Clinical Trials Registry: ACTRN12610000286044."