The Relationship Between Predisposing Risk Factors and COVID-19: An Observational Study.

Background Numerous risk factors have been identified for developing severe COVID-19, including sociodemographic variables and concomitant diseases. Individuals with underlying comorbidities such as diabetes, hypertension, asthma, and coronary artery disease are at a greater risk of severe illness and death. This study aimed to observe the association between risk factors and the severity of COVID-19.

An Observational Study on the Analysis of Vitamin D Deficiency in COVID-19 Patients With No Comorbidities: A Retrospective Analysis.

Introduction:  Vitamin D deficiency is an important problem when facing a viral disease. Vitamin D deficiency is widely prevalent in India and plays an important role in immunoregulation. The deficiency can lead to severe viral infections.

Hypertension in Young Adults: Treat It Before It's Too Late.

Hypertension affects a major part of the world population and is one of the leading modifiable risk factors for cardiovascular disease. Its prevalence is increasing in all age groups due to various factors, which include poor lifestyle. Among young people, it poses a special challenge and needs critical reappraisal.

An Interesting Case of Hypogammaglobulinemia Caused by the Combined Effect of Rituximab Infusion and Common Variable Immunodeficiency (CVID).

This case report is about a patient who presented with bilateral fungal pneumonia. He had a background of viral hepatitis-E infection five years ago, non-Hodgkin lymphoma in remission for four years, and a severe COVID-19 infection three years ago. He was found to have a common variable immune deficiency (CVID) in the background of long-standing hypoglobulinemia, which had never been evaluated.