Open AccessRelación entre la vacunación BCG y el incremento de la mortalidad por COVID-19. ¿Falacia ecológica?
Author(s) -
Miguel Ángel Villasís-Keever,
María Guadalupe Miranda-Novales
Publication year - 2021
Publication title -
revista medica del instituto mexicano del seguro social/revista médica del instituto mexicano del seguro social
Language(s) - Spanish
Resource type - Journals
eISSN - 2448-5667
pISSN - 0443-5117
DOI - 10.24875/rmimss.m20000002
Subject(s) - covid-19 , medicine , humanities , virology , philosophy , outbreak , disease , infectious disease (medical specialty) , pathology
Ecological studies are one of the most common study designs used to establish the association between certain factors and disease development. However, they have limitations mainly on how to measure the variables, so their results must be verified in studies with greater validity. Therefore, the study that links the possible relationship between higher mortality from COVID-19 and non-vaccination by bacillus Calmette-Guérin (BCG) that was recently published, remains in doubt due to the lack of rigor in the methodology used.