The recent emergence of COVID‐19 has resulted in a worldwide crisis, with large
populations locked down and transportation links severed. While approximately 80% of …

The coronavirus disease 2019 (COVID-19) pandemic has a variable degree of severity
according to underlying comorbidities and life-style. Several research groups have reported …

In the absence of treatment or a vaccine, the SARS-CoV-2 pandemic challenges the medical
community to identify novel containment strategies. Changeux et al. 1 have proposed the …

With great interest we read and commend the study done by Russo et al.[1], highlighting
their findings that nicotine induces an increase in angiotensin-converting enzyme 2 (ACE-2) …

Background The harms of tobacco use are well-established. Tobacco causes 8 million
deaths every year from cardiovascular diseases, lung disorders, cancers, diabetes, and …

The three letters from D. Lutchman, KD McAlinden and co-workers, and K. Farsalinos and co-
workers together capture the divergence in opinion on the impact of smoking on coronavirus …

Introduction Preliminary reports indicated that smokers could be less susceptible to
coronavirus SARS-CoV-2, which causes Covid-19. However, once infected an increased …

Abstract Introduction The Coronavirus disease (COVID-19) infection is caused by the novel
Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) primarily affecting the …

Leung et al.[1] have recently published, in the European Respiratory Journal, a paper on the
expression of angiotensin-converting enzyme II (ACE-2) in the small airway epithelia of …

Heterogeneity in the clinical presentation of SARS-CoV-2 infection and COVID-19
progression underscores the urgent need to identify individual-level susceptibility factors …