Aging is an important factor affecting the deterioration of patients with coronavirus disease
2019 (COVID-19). The aging and degeneration of various tissues and organs in the elderly …

Objective: We aim to investigate the clinical characteristics and risk factors for the severe
cases of coronavirus disease 2019 (COVID-19) in comparison with the non-severe patients …

In December 2019 a cluster of pneumonia caused by a previous unknown coronavirus,
SARS-CoV-2, was identified in Wuhan, China. 1 SARS-CoV-2 belongs to the subgenus of …

During the last 2 years, the entire world has been severely devastated by the severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic (COVID-19) as it resulted in …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused a rapidly
spreading outbreak of coronavirus disease 2019 (the COVID-19 pandemic). COVID-19 has …

The number of corona virus disease 2019 cases is increasing rapidly. However, the
comparison of clinical characteristics between patients≥ 70 and those< 70 has not been …

One key aspect of human aging is the dysregulation of the immune system. As we age, our
body's defense system weakens, leading to declined responses to infection by new …

Abstract Coronavirus disease 2019 (COVID-19) is a respiratory infectious disease caused
by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). COVID-19 is …

Abstract Importance: Among COVID-19 cases, especially the (frail) elderly show a high
number of severe infections, hospital admissions, complications, and death. The highest …

Abstract The emergence of Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-
2) in late 2019 has been associated with a high rate of mortality and morbidity. It has been …