Genetic variants of severe acute respiratory syndrome coronavirus (SARS-CoV-2) have
been globally surging and devastating many countries around the world. There are at least …

The emergence and global dissemination of Severe Acute Respiratory Syndrome virus 2
(SARS-CoV-2) variants of concern (VOCs) have been described as the main factor driving …

The SARS-CoV-2 variant of concern (VOC) Delta was first detected in India in October 2020.
The first imported cases of the Delta variant in Brazil were identified in April 2021 in the …

Tocantins is a state in the cross-section between the Central-West, North and Northeast
regions of Brazilian territory; it is a gathering point for travelers and transportation from the …

Genomic surveillance has been applied since the beginning of the COVID‐19 pandemic to
track the spread of the virus, leading to the characterization of multiple SARS‐CoV‐2 …

Delta VOC is highly diverse with more than 120 sublineages already described as of
November 30, 2021. In this study, through active monitoring of circulating severe acute …

During the first semester of 2021, all of Brazil has suffered an intense wave of COVID-19
associated with the Gamma variant. In July, the first cases of Delta variant were detected in …

Mutations in the SARS-CoV-2 genome can alter the virus' fitness, leading to the emergence
of variants of concern (VOC). In Brazil, the Gamma variant dominated the pandemic in the …

The Gamma (P. 1/501Y. V3) variant of severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) was first detected through whole-genome sequencing (WGS) in Japan in …

Introduction: COVID-19 is an infectious disease caused by SARS-CoV-2 that has become a
serious threat to public health owing to its rapid spread from aerosols from infected people …