Abstract The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) is the most formidable challenge to …

The world has entered the second wave of the COVID-19 pandemic, and its intensity is
significantly higher than that of the first wave of early 2020. Many countries or regions have …

Vaccines are urgently needed to control the coronavirus disease 2019 (COVID-19)
pandemic and to help the return to pre-pandemic normalcy. A great many vaccine …

The global outbreak of coronavirus disease 2019 (COVID-19) is still threatening human
health, economy, and social life worldwide. As a counteraction for this devastating disease …

Initial optimism regarding the development of COVID-19 vaccines has been tempered by the
emergence of new variants of SARS-CoV-2. Will vaccination be able to contain the …

The COVID-19 pandemic caused by SARS-CoV-2 has resulted in millions of cases and
hundreds of thousands of deaths. Beyond there being no available antiviral therapy …

As of 8 January 2021, there were 86,749,940 confirmed coronavirus disease 2019 (COVID-
19) cases and 1,890,342 COVID-19-related deaths worldwide, as reported by the World …

The COVID‐19 pandemic has unfolded to be the most challenging global health crisis in a
century. In 11 months since its first emergence, according to WHO, the causative infectious …

Abstract SARS-CoV-2, the virus that causes COVID-19, emerged in late 2019, and was
declared a global pandemic on March 11th 2020. With over 50 million cases and 1.2 million …

The persistent coronavirus disease 2019 (COVID-19), characterized by severe respiratory
syndrome, is caused by coronavirus 2 (SARS-CoV-2), and it poses a major threat to public …