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Updates for key determinants of measles vaccination. Historical and updated data sources for the four determinants are compared, including A case-fatality risk, B social contact patterns, C age-dependent vaccine efficacy, and D SIA coverage in zero-dose population. For country-specific assumptions like A and B, we demonstrated the data in India (the country with the highest measles mortality in 2000) and respectively include data in other countries in Additional file 1: Figure S1 and S2
