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. 2022 May 16;22:651. doi: 10.1186/s12913-022-08006-1

Fig. 1.

Fig. 1

Estimated total annual cost (USD, $) associated with vaccination, according to cost category. USD, $1 equal to S/ 3.374 Peruvian Soles (average accounting exchange rate reported on December 31, 2018 by the Peruvian Superintendence of Banks, Insurance and Private Pension Fund Administrators [Superintendencia de Banca, Seguros y AFP]) [36]. ARs, adverse reactions; OPV, oral polio vaccine; USD, US dollar