Trends in hospitalization and mortality in COVID-19 admitted patients after a single dose of vaccine

Background: Several types of vaccines are available across the world. Efficacy in preventing disease or reducing severity terms hospitalization, morbidity, and mortality needs to be studied vaccinated patients, as most them fail prevent COVID-19 infections. Aims Objectives: We aimed correlate impact a single dose vaccine breakthrough Materials Methods: The present study included 348 patients admitted tertiary hospital Telangana, India, from March August 2021 (and divided into an elderly group Group 1 middle-aged 2 according vaccination protocol). Data were taken medical records retrospectively regarding demographic clinical details, well status during their stay. Results: Diabetes mellitus hypertension found prevalent together comorbidities (40%) with prolonged hospitalization 36% those severe (assisted ventilation). In groups, irrespective age, was drastically halved (PR=0.418 for PR=0.416 2). Overall is times more frequent than (odds ratio=2.12). Overall, stays need ventilatory support deaths also common men women. Conclusion: Older male gender, one comorbidity important factors determining poor outcomes persons acute respiratory syndrome coronavirus infection, whereas associated strong protective effect.