0120-4157 0120-4157 S0120-41572022000600019 10.7705/biomedica.6254 Colombia 00 10 2022 00 10 2022 42 19 31

1 2020 579 579 265-9 2 2020 4 4 536-44 3 World Health Organization 4 2011 5 5 120-6 5 ClinicalTrials.gov 6 World Health Organization 7 2021 35 35 1-13 8 Food and Drug Administration 9 Food and Drug Administration 10 AztraZeneca 11 World Health Organization 12 2021 372 372 n71 13 2011 343 343 d5928 14 2020 119 119 126-35 15 2017 2 2 181-98 16 2002 11 11 1539-58 17 2020 25 25 2439-50 18 2021 27 27 270-8 19 2020 7830 7830 589-93 20 2020 10249 10249 467-78 21 2021 2 2 279-88 22 2021 10267 10267 1979-93 23 2020 24 24 2320-32 24 2020 27 27 2603-15 25 2021 384 384 403-16 26 2021 10269 10269 99-111 27 2021 10277 10277 881-91 28 2021 10275 10275 671-81 29 Centers for Disease Control and Prevention 30 World Health Organization 31 World Health Organization 32 Sinopharm 33 34 Centers for Disease Control and Prevention 35 Food and Drug Administration 36 2009 2 2 91-108 37 2015 13 13 224 38 Alberta Health Services 39 Centers for Disease Control and Prevention