The coronavirus disease 2019 (COVID-19) pandemic, an infection caused by the severe
acute respiratory syndrome coronavirus (SARS-CoV-2), has led to more than 771,000 …

Background: The purpose of this study was to examine the prevalence and effects of current
smoking on adverse outcomes among hospitalized COVID-19 patients. Methods: A …

SARS-CoV-2 epidemics raises a considerable issue of public health at the planetary scale.
There is a pressing urgency to find treatments based upon currently available scientific …

Background Smoking is a risk factor for most respiratory infections, but it may protect against
SARS-CoV-2 infection. The objective was to assess whether smoking and e-cigarette use …

Methods PubMed database was searched to look for relevant articles. Inclusion criteria were
as follows:(1) cohort studies or case series studies;(2) study population included individuals …

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

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

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

The recent COVID-19 pandemic has raised concern regarding risk factors associated with
disease severity and case fatality. In this context, the association of smoking with severity …

Smoking affects a person's overall health and damages nearly every organ of the body.
Since smoking tobacco affects and damages the lungs, it increases the risk of respiratory …