Impact of the National Vaccination Plan on lethality from COVID 19 Insurer in Colombia 2020-2022

Abstract

Introduction: The COVID-19 pandemic quickly became a global public health priority between 2020 and 2022, a time when biologicals were developed and approved in record time. The purpose of this research is to measure the impact of vaccination. in fatality due to COVID 19 in an insurer in the Colombian southwest. Methodology: A cross-sectional observational study was carried out with analytical intention, in active affiliates of the insurer, detected and confirmed with PCR or antigen tests, to calculate the lethality, the quotient of deaths and number of confirmed cases in the study period, the sources for morbidity and mortality they were SIVIGILA, SISMUESTRAS, SEGCOVID, RIPS and RUAF; while the source of the vaccinated population was PAIWEB and a web 2.0 application, Results: From the first case registered on March 17, 2020 to August 30, 2022, the insurer registered 97,274 cases of COVID 19, and 3,619 deaths, resulting in a fatality of 3.7%, the majority was confirmed by antigen tests and among the cases in the post-vaccination period the effective coverage of dose 1 was around 30%, in all doses the most frequent biologics were Sinovac and Pfizer. Conclusions: lethality was significantly associated with exposure to vaccination, being lower in the population immunized with at least one dose, in all age groups (p value 0.0001 < 0.05).