A number of recent studies have found low percentages of smokers among COVID-19
patients, causing scientists to conclude that smokers may be protected against SARS-CoV-2 …

Although it is well established that cigarette smoking is associated with morbidity and
mortality in several respiratory infections, data from recent studies suggest that active …

The city of Wuhan in China became the centre of a pneumonia outbreak of unknown cause
in December 2019. On 7 January 2020, a novel coronavirus, severe acute respiratory …

Rationale The association between smoking status and severe Coronavirus Disease 2019
(COVID-19) remains controversial. Objective To assess the risk of hospitalization (as a …

Introduction Current evidence indicates that smoking worsens COVID-19 outcomes.
However, when studies restricted their analyses to current smokers, the risks for COVID-19 …

BACKGROUND Smokers are generally more susceptible to infectious respiratory diseases
and are at higher risk of developing severe complications from these infections. Conflicting …

The clinical sequalae of SARS-CoV-2 infection are in part dependent upon age and pre-
existing health conditions. Although the use of tobacco products decreases cardiorespiratory …

The association between current smoking and coronavirus disease 2019 (COVID-19)
progression remains uncertain. We aim to provide up-to-date evidence of the role of …

The ongoing COVID-19 pandemic has placed a spotlight on infectious diseases and their
associations with host factors and underlying conditions. New data on the Severe Acute …

SARS-CoV-2 is a new coronavirus that has caused a worldwide pandemic. It produces
severe acute respiratory disease (COVID-19), which is fatal in many cases, characterised by …