Recently, the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) Omicron
variant (B. 1.1. 529) was first identified in Botswana in November 2021. It was first reported …

The COVID-19 pandemic has infected millions worldwide, leaving a global burden for long-
term care of COVID-19 survivors. It is thus imperative to study post-COVID (ie, short-term) …

During the COVID-19 pandemic, SARS-CoV-2 variants have emerged and spread
worldwide. The Delta (B. 1.617. 2) variant was first reported in India in October 2020 and …

As of November 2021, several SARS‐CoV‐2 variants appeared and became dominant
epidemic strains in many countries, including five variants of concern (VOCs) Alpha, Beta …

During the COVID‐19 pandemic, genetic variants of SARS‐CoV‐2 have been emerging and
spreading around the world. Several SARS‐CoV‐2 endemic variants were found in United …

Abstract Coronavirus disease 2019 (COVID-19), a respiratory viral infection, has affected
more than 78 million individuals worldwide as of the end of December 2020. Previous …

Abstract Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2), has become a global pandemic. Clinical evidence …

Coronavirus disease 2019 (COVID-19) is a respiratory infectious disease caused by severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Droplets and contacts serve as …

The risk factors for coronavirus disease 2019 (COVID-19) severity are still poorly
understood. Considering the pivotal role of the gut microbiota on host immune and …

Abstract The Omicron (B. 1.1. 529) variant was first reported in South Africa and rapidly
spread worldwide in early November 2021. This caused panic in various countries, so it is …