13-Valent pneumococcal conjugate vaccines vaccination innovative strategy in Weifang City, China: a case study.

"Declarations Ethics approval and consent to participatePermission for the study was obtained from the Ethics Committee of the Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS&PUMC-IEC-2021-035). No patient or clinical data were analyzed; hence, informed consent was not required. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This study was supported by Bill and Melinda Gates Foundation (OPP1216666) and Natural Science Foundation of Shandong Province (ZR2022MG032) and Key R&D Program of Shandong Province, China(2023RKY07003). The work reported in this publication is part of the research “Innovation Lab of Vaccine Delivery Research,” supported by the Bill & Melinda Gates Foundation (INV- 034554). Under the grant conditions of the Foundation, a Creative Commons Attribution 4.0 Generic License has already been assigned to the author-accepted manuscript version, which might arise from this submission. The funder did not play any role in the study design, data analysis, data interpretation, writing of the manuscript, or submission of this manuscript. The content of this study is solely the responsibility of the authors and does not represent any view of the funding source."