Researchers from Levin & Morgan, JSI, and Gavi, the Vaccine Alliance, have conducted a scoping review of studies that estimate the costs of increasing childhood vaccination and reducing prevalence of zero-dose children in low- and middle-income countries. Eleven studies met inclusion criteria, including 7 from South Africa, 3 from Africa and 1 from Latin America, with intervention costs varying from US$0.08 per additional dose for SMS reminders in Kenya to US$67 per dose for cash transfers in Nicaragua.
The wide variation in intervention costs underscores the need for standardized costing methodologies to enhance comparability across studies, and establishing research principles for costing zero-dose interventions could strengthen future evidence for policymaking.
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