Abstract On March 11, 2020, the World Health Organization declared Coronavirus Disease
2019 (COVID-19) a pandemic. Till now, it affected 452.4 million (Spain, 11.18 million) …

Introduction. Tobacco use increases risks for numerous diseases, including respiratory
illnesses. We examined the literature to determine whether a history of tobacco use …

Purpose Obstructive sleep apnea (OSA) may increase the risk of severe COVID-19;
however, the level of potential modulation has not yet been established. The objective of the …

Background The association of asthma with the risk for mortality among coronavirus disease
2019 (COVID-19) patients is not clear. Objective To investigate the association between …

Background The pleiotropic effects of statins may reduce the severity of COVID-19 disease.
This study aims to determine the association between inpatient statin use and severe …

In this journal, Miller et al. have recently published an interesting article titled “A systematic
review of COVID-19 and obstructive sleep apnoea”[1]. In this paper, the authors descriptively …

Background: Since the outbreak of the COVID-19 pandemic, identifying the main risk factors
has been imperative to properly manage the public health challenges that the pandemic …

Study Objectives: Medical comorbidities increase the risk of severe COVID-19 infection. In
some studies, obstructive sleep apnea (OSA) has been identified as a comorbid condition …

Background: Qingfei Paidu decoction (QFPDD) has been widely used in treating
coronavirus disease 2019 (COVID-19) in China. However, studies on the treatment effect of …

Because severe coronavirus disease 2019 (COVID-19) affects the respiratory system and
develops into respiratory failure, patients with pre-existing chronic lung disorders, such as …