One vaccine to counter many diseases? Modeling the economics of oral polio vaccine against child mortality and COVID-19

Autor: Angela Y. Chang, Peter Aaby, Michael S. Avidan, Christine S. Benn, Stefano M. Bertozzi, Lawrence Blatt, Konstantin Chumakov, Shabaana A. Khader, Shyam Kottilil, Madhav Nekkar, Mihai G. Netea, Annie Sparrow, Dean T. Jamison
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Frontiers in Public Health, Vol 10 (2022)
Druh dokumentu: article
ISSN: 2296-2565
DOI: 10.3389/fpubh.2022.967920
Popis: IntroductionRecent reviews summarize evidence that some vaccines have heterologous or non-specific effects (NSE), potentially offering protection against multiple pathogens. Numerous economic evaluations examine vaccines' pathogen-specific effects, but less than a handful focus on NSE. This paper addresses that gap by reporting economic evaluations of the NSE of oral polio vaccine (OPV) against under-five mortality and COVID-19.Materials and methodsWe studied two settings: (1) reducing child mortality in a high-mortality setting (Guinea-Bissau) and (2) preventing COVID-19 in India. In the former, the intervention involves three annual campaigns in which children receive OPV incremental to routine immunization. In the latter, a susceptible-exposed-infectious-recovered model was developed to estimate the population benefits of two scenarios, in which OPV would be co-administered alongside COVID-19 vaccines. Incremental cost-effectiveness and benefit-cost ratios were modeled for ranges of intervention effectiveness estimates to supplement the headline numbers and account for heterogeneity and uncertainty.ResultsFor child mortality, headline cost-effectiveness was $650 per child death averted. For COVID-19, assuming OPV had 20% effectiveness, incremental cost per death averted was $23,000–65,000 if it were administered simultaneously with a COVID-19 vaccine
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