Comorbidities and severity of coronavirus disease 2019 patients.

Objectives: To determine the association between comorbidities and the severity of the disease among COVID-19 patients.

Methods: We searched the Cochrane, Medline, Trip, and EMBASE databases from 2019. The review included all available studies of COVID-19 patients published in the English language and studied the clinical characteristics, comorbidities, and disease outcomes from the beginning of the pandemic.

Assessing of policies and practices for occupational exposure to blood-borne viral infections in Tanta University Hospitals, Egypt.

One of the best ways to investigate and improve the effectiveness of polices for prevention and control of infections is through systematic and rigorous evaluation of the structural, functional, and practical elements of these polices. To assess the policies for managing occupational exposure to blood-borne viral infections in Tanta University Hospitals. A cross-sectional survey was carried out.