Abstract The Sars-CoV-2 disease (known as COVID-19) has become a global public health
emergency. Researchers have been unveiling the transmission mechanisms and disclosing …

Background Air pollution exposure may make people more vulnerable to COVID-19
infection. However, previous studies in this area mostly focused on infection before May …

People with chronic obstructive pulmonary disease, cardiovascular disease, or hypertension
have a high risk of developing severe coronavirus disease 2019 (COVID-19) and of COVID …

Background and aims The coronavirus disease 2019 (COVID-19) pandemic is severely
threatening and challenging public health worldwide. Epidemiological studies focused on …

A growing number of studies report associations between air pollution and COVID-19
mortality. Most were ecological studies at the county or regional level which disregard …

Abstract The coronavirus disease (COVID-19) has become a global public health threaten. A
series of strict prevention and control measures were implemented in China, contributing to …

The novel coronavirus pneumonia, namely COVID-19, has become a global public health
problem. Previous studies have found that air pollution is a risk factor for respiratory infection …

Background Air pollution is one of the world's leading mortality risk factors contributing to
seven million deaths annually. COVID-19 pandemic has claimed about one million deaths in …

In December 2019, the novel coronavirus COVID-19 outbreak was first detected in Wuhan
Hubei province, China. The April 24, 2020, the Centers for Disease Control and Preventions …

Several epidemiological studies have suggested a link between air pollution and respiratory
tract infections. The outbreak of coronavirus disease 2019 (COVID‐19) poses a great threat …