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. 2023 Dec 12;11(12):1841. doi: 10.3390/vaccines11121841

Table 2.

Vaccination strategies in Argentina, Brazil, and Chile during the period 2010–2021.

Argentina Brazil Chile
Vaccine in NIP a MCV-ACWY MCV-C MCV-ACWY MCV-ACWY 4CMenB
Age of vaccination

  • Infants

 3 and 5 moa 3 and 5 moa N/A N/A 2 and 4 moa

  • Toddlers

 15 moa 12–15 moa N/A 12 moa N/A

  • Adolescents

 11 yoa N/A 11–12 yoa N/A N/A
Year of implementation 2017 2010/2017 c 2020 2014 2023
Vaccine uptake (%) b

  • Infants

 66.6 91 N/A N/A N/A e

  • Toddlers

 54.7 84.5 N/A 95.6 N/A

  • Adolescents

 47.5 53 d N/A N/A

a NIP: National immunization program. b Vaccine uptake was estimated as median percentage. c Brazil introduced MCV-C for infants and toddlers in 2010. The adolescents were included in 2017 first using MCV-C, followed by MCV-ACWY in 2020. d Includes coverage of both MCV-C and MCV-ACWY during the period. e Data about the uptake of 4CMenB in infants are not available due to its recent implementation. N/A = not applicable (grayed out for better visualization of available data).