2444-054X 2444-054X S2444-054X2021000600836 10.24875/ciru.21000487 Estados Unidos de America México México El Salvador México México 00 12 2021 00 12 2021 89 6 836 843

1 2021 2 2021 5 947-53 3 1992 356 152-4 4 2020 324 1344-5 5 Immunization Action Coalition 2021 6 2020 44 7 2021 39 317-23 8 2018 36 5811-8 9 2018 25 6070-81 10 2012 8 293-301 11 Organización de las Naciones Unidas 2020 12 World Health Organization 2020 13 2014 5 12 14 2013 25 89-103 15 2018 9 1963 16 2015 33 5294-301 17 2018 2018 6872621 18 2019 6 116 19 2008 8 685-98 20 2015 145 1039S-108S 21 2021 225 108685 22 2008 23 800-7 23 2014 34 302-16 24 2013 27 469-70 25 Centers for Disease Control and Prevention 2021 26 2020 9 2589 27 2020 21 28 2020 27 42115-23 29 World Health Organization 2021 30 World Health Organization 31 2021 1-13 32 2005 11 4 Suppl 4 Suppl S5-11 33 2013 7 34 2020 16 139-44 35 1999 2 205-12 36 2000 68 793-806 37 1999 55 751-70 38 2003 21 649-58 39 1976 235 25-33 40 Centers for Disease Control and Prevention 41 Government of Western Australia Department of Health