The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

In spite of the vaccine development and its importance, the SARS-CoV-2 pandemic is still
impacting the world. It is known that the COVID-19 severity is related to the cytokine storm …

Introduction Current evidence suggests the potential heightened vulnerability of smokers to
severe coronavirus disease (COVID-19) outcomes. Aims This study aimed to analyze the …

Although both virulence and pathogenicity of SARS-CoV-2 have considerably declined over
time, the number of coronavirus disease 2019 (COVID-19) cases and the consequent …

Background Smoking and vaping are linked to lung inflammation and lowered immune
response. Objective Examine the prevalence of coronavirus disease 2019 (COVID‐19) …

Background Although psychiatric disorders have been associated with reduced immune
responses to other vaccines, it remains unknown whether they influence COVID‐19 vaccine …

INTRODUCTION COVID‐19 had devastating impacts worldwide. However, most research
examining the impact of dementia on COVID‐19 outcomes has been conducted in Europe …

Background Research investigating the association between cigarette smoking and COVID-
19 outcomes has yielded mixed results, often overlooking cannabis use. This study …

Identifying patients at risk for readmission after severe acute respiratory syndrome
coronavirus 2 (SARS‐CoV‐2) infection could facilitate care planning and prevention. This …

Background The COVID-19 pandemic was managed in part by the rapid development of
vaccines, diagnostics, and therapeutics including antiviral agents and advances in …