Objetives: To describe the events supposedly attributable to immunization with the Pfizer-BioNTech® COVID-19 vaccine in children aged 5 to 17 years in the state of Puebla, Mexico.
Methods: Observational, cross-sectional and descriptive study carried out based on the analysis of reports of events supposedly attributable to immunization in children aged 5 to 17 years, who received the vaccine with the BNT162b2 mRNA platform for COVID-19, since January. to December 2022.
Objective: To determine the prevalence and risk factors of the post-COVID-19 condition of children and adolescents from a cohort.
Methods: Observational and analytical cohort study. Statistical analysis: percentages, frequencies; averages; Odds ratio, χ test, and multiple binary logistic regression.