India was among the eight countries where more than half the unvaccinated children from around the world lived as of 2023, an analysis published in The Lancet journal showed, "emphasising persistent inequities."

Providing global estimates of current vaccine coverage, the study found that the same year, there were 15.7 million children -- 1.44 million in India -- who had received no doses of the diphtheria, tetanus, and pertussis vaccine in their first year.

An international team of researchers forming the 'Global Burden of Disease (GBD) 2023 Vaccine Coverage Collaborators' updated global, regional, and national estimates of routine childhood vaccine coverage from 1980 to 2023 for 204 countries and territories.