WHO世界卫生组织：2026年关于伤寒疫苗的立场文件报告（英文版）

In accordance with its mandate to provide normative guidance to Member States on health policy matters, WHO issues a series of regularly updated position papers1on vaccines and combinations of vaccines against diseases that have an international public health impact. These papers are concerned primarily with the use of vaccines in large-scale vaccination programmes. The position papers are intended for use by national public health officials and managers of immunization programmes. They may a