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. Some people had apprehensions about different vaccines being administered in the country. The purpose of this study was to compare the clinical characteristics and outcome of the patients vaccinated against Covid-19 with those of the non-vaccinated patients during the fourth wave of Covid-19 in Pakistan Naval Ship (PNS) Shifa Hospital.
Methods
The cross-sectional descriptive study was performed at PNS Shifa Hospital Karachi, from July to October 2021. All the Covid-19 patients treated in PNS Shifa Hospita