Omicron surge, between December 2021 and April 2022, in the greater Los Angeles area, 912 adults who had received at least three doses of an mRNA Covid-19 vaccine (either the Pfizer-BioNTech or Moderna Covid-19 vaccines, authorised by the U.S.
Food and Drug Administration) and were treated for Covid-19 underwent a retrospective cohort study. Age, gender, race, ethnicity, and clinical data from electronic health records were among the demographic details that were looked at.
The existence of chronic medical illnesses such as type 2 diabetes, kidney disease, heart attack, heart failure, and past chronic pulmonary obstructive disease or asthma are examples of critical clinical traits and variables that researchers have uncovered.
The study group included participants who had received the whole Covid-19 vaccine series and a booster dose, the study's lead author Joseph E.