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abstractpubmed· Abstract 2020· item PMID:31922950

Need for BCG Vaccination to Prevent TB in High-Incidence Countries and Populations. An estimated one quarter of persons worldwide are infected with Mycobacterium tuberculosis. In 2018, the World Health Organization issued revised guidance on BCG vaccine for high-risk groups. The World Health Organization should consider guiding countries on a case-by-case basis in developing appropriate BCG policies to deliver equitable healthcare and protect public health.