As of July 2021, the outbreak of coronavirus disease 2019 (COVID-19), caused by SARS-
CoV-2, has led to more than 200 million infections and more than 4.2 million deaths globally …

Background The ongoing coronavirus disease 2019 (COVID-19) pandemic caused by
severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is a global public health …

A continual rise in severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection
causing coronavirus disease (COVID-19) has become a global threat. The main problem …

Abstract Coronavirus Disease 2019 (COVID-19) manifests as extreme acute respiratory
conditions caused by a novel beta coronavirus named severe acute respiratory syndrome …

Introduction: The year 2020 was defined by the 29,903 base pairs of RNA that codes for the
SARS-CoV-2 genome. SARS-CoV-2 infects humans to cause COVID-19, spreading from …

Coronavirus Disease 2019 (COVID-19) caused by the novel severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) has led to considerable morbidity and mortality …

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) produced diverse
molecular variants during its recent expansion in humans that caused different …

The COVID-19 pandemic is due to infection caused by the novel SARS-CoV-2 virus that
impacts the lower respiratory tract. The spectrum of symptoms ranges from asymptomatic …

The past several months have witnessed the emergence of SARS-CoV-2 variants with novel
spike protein mutations that are influencing the epidemiological and clinical aspects of the …

The COVID-19 pandemic caused by the Severe Acute Respiratory Syndrome Coronavirus-2
(SARS-CoV-2) poses an unprecedented challenge to humanity. SARS-CoV-2 infections …