Incidence Rates and Risk Factors for Covid-19 Booster Adverse Reactions in General Medicine

Abstract

Background: Data on the incidence rate and risk factors of covid-19 booster adverse reactions are critical to success vaccination programs.

SARS–CoV–2 Reinfections as Compared with Primary Infections in Vaccinated People. Are there Clinical–Epidemiological Differences of Importance for Health Interventions between First Infection and Reinfection in Vaccinated People?

“…It currently seems to be accepted that underlying chronic respiratory diseases increase the predisposition to reinfection [38]. In the same population of our study, it has been previously published that the presence of chronic respiratory diseases was a moderate risk factor [8]. In the case of respiratory diseases, specifically, it has been seen that the representation of people with COPD or asthma with COVID-19 in relation to the population prevalence is strikingly low, however, COPD is associated with a worse clinical course and with a higher mortality from COVID-19, as well as a higher risk of admission to the ICU [39].…”

“…1) A study of COVID-19 reinfection cases with vaccine (1, 2 or 3 doses) from 2021 to June 2022 [7,8]. 2) A set of studies of COVID-19 primary infections in vaccinated people (1, 2 or 3 doses) from 2021 to June 2022 [9][10][11].…”

“…The GPs in Spain work within the National Health System, which is public in nature, and are the gateway for all patients to the system, and each person is assigned a GP [12]. The methodology of both studies has been previously published [7][8][9][10][11]. This methodology will only be partially mentioned here, to avoid repetition.…”