Background Albeit the need for sex-disaggregated results of adverse events after
immunization (AEFIs) is gaining attention since the COVID-19 pandemic, studies with …

Aim: Despite huge efforts in developing specific drugs, vaccination represents the only
effective strategy against COVID-19. Efficacy and safety of the COVID-19 vaccines were …

Background The safety profile of COVID-19 vaccines in immunocompromised patients has
not been comprehensively evaluated. Aim To measure the frequency of patient-reported …

Background: Vaccination in pandemic diseases, in addition to positive effects on controlling
the prevalence and reducing the resulting socioeconomic effects, can have adverse effects …

Almost a year after the declaration of the pandemic due to the SARS-CoV-2 virus which
causes the COVID-19 disease and the need to contain the progression and treatment, the …

Objective To investigate the association of immune response with vaccination adverse
effects at peak anti–receptor-binding domain spike subunit 1 (anti-RBDS1) IgG after full …

Background The description of the skin reactions produced by the different vaccines against
SARS‐CoV‐2 has focused on the symptoms reported by the general population. There are …

Objective: A comparative analysis was performed to investigate the potential risk factors of
Adverse Events Following Immunization (AEFI) after receiving different booster vaccines …

Vaccines can cause adverse reactions, such as soreness, swelling, or redness at the
injection site. Some reactions are associated with fever and rash, which are usually mild and …

Introducción/Objetivos Evaluar la aparición de efectos adversos a corto plazo y los factores
de riesgo tras recibir la vacuna BNT162b2 en el personal sanitario del Hospital Clínico San …