2444-6483 2444-6483 S2444-64832021000300099 10.24875/end.22000004 México México EE.UU 00 09 2021 00 09 2021 33 3 99 105

1 2020 91 1 1 157-60 2 Texas Medical Association 3 2021 3 1 1 70-1 4 Centers for Disease Control and Prevention 5 2020 172 9 9 577-82 6 2021 28 7 7 taab124 7 2021 11 4 4 778-84 8 México - COVID-19 - Crisis del coronavirus [Internet] 9 2021 187 107368 10 2021 375 11 2021 385 7 7 585-94 12 National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases 2020