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 …

Patients with viral illness are at higher risk of secondary infections—whether bacterial, viral,
or parasitic—that usually lead to a worse prognosis. In the setting of Corona Virus Disease …

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 …

Hypertension, diabetes mellitus, and coronary artery disease are common comorbidities and
dangerous factors for infection and serious COVID-19. Polymorphisms in genes associated …

Background: The human protein transmembrane protease serine type 2 (TMPRSS2) plays a
key role in SARS-CoV-2 infection, as it is required to activate the virus' spike protein …

Findings collected over two and a half years of the COVID-19 pandemic demonstrated that
the level immunity resulting from vaccination and infection is insufficient to stop the …

Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) infection leads to a wide
range of clinical manifestations and determines the need for personalized and precision …

Objective To determine the effect of polymorphisms and mutations in angiotensin-converting
enzyme 2 (ACE2) and Type 2 transmembrane serine proteases (TMPRSS2) genes on …

Background and aims Interferon-induced transmembrane protein 3 (IFITM3) plays a critical
role in the adaptive and innate immune response by preventing membrane hemifusion …

Background: Infection due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) is associated with clinical features of diverse severity. Few studies investigated the …