Background COVID-19 is associated with several risk factors such as distinct ethnicities
(genetic ancestry), races, sexes, age, pre-existing comorbidities, smoking, and genetics. The …

The SARS-CoV-2 pandemic has become one of the most serious health concerns globally.
Although multiple vaccines have recently been approved for the prevention of coronavirus …

COVID-19 and the renin-angiotensin system (RAS) are linked by angiotensin-converting
enzyme 2 (ACE2), a key enzyme in RAS that has been validated as a SARS-CoV-2 receptor …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the
current coronavirus disease 2019 (COVID-19) pandemic, affecting more than 219 countries …

Background Infection by the SARS-Cov-2 virus produces in humans a disease of highly
variable and unpredictable severity. The presence of frequent genetic single nucleotide …

Abstract Coronavirus disease 2019 (COVID-19) is a severe disease caused by a new
variant of beta-coronavirus that first appeared in China. Human genetic factors, including …

The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative
agent of coronavirus disease 2019 (COVID-19), was first identified in Eastern Asia (Wuhan …

Abstract Coronavirus disease 2019 (COVID-19) caused by a novel coronavirus, severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has resulted in considerable …

Chronic and acute respiratory diseases pose a major problem for public health worldwide
due to the high morbidity and mortality rates, while treatment options remain mostly …

Background: Genetic risk factors may be related to the infectivity and severity of SARS-CoV-
2 infection. Angiotensin-converting enzyme 2 (ACE2) and host transmembrane serine …