Comparison of Clinical Characteristics and Outcome of COVID-19 Patients Between the 4 and 5 Wave in a Tertiary Care Hospital in Karachi, Pakistan.

Unlabelled: ABSTRACT       Objective: To compare the clinical parameters of 4th and 5th COVID waves in Karachi, Pakistan.

Study Design: Descriptive study. Place and Duration of the Study: PNS Shifa Hospital, Karachi, from July 2021 to February 2022.

Comparison of Clinical Characteristics and Outcome Between Vaccinated and Non-Vaccinated Patients of Covid-19 During the Delta Variant-Dominated Fourth Wave in a Tertiary Care Hospital in Karachi, Pakistan.

Introduction In Pakistan, the fourth wave of coronavirus disease 2019 (Covid-19) started around July 2021, which was dominated by the Delta variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus. The vaccination drive to immunize the people of Pakistan against Covid-19 was also going on during this period. There were multiple types of vaccines being administered to the people of Pakistan, as the vaccines had been procured from multiple sources.