Abstract The coronavirus disease 2019 (COVID-19) epidemic in Brazil was driven mainly by
the spread of Gamma (P. 1), a locally emerged variant of concern (VOC) that was first …

Background: The emergence of the Brazilian variant of concern, Gamma lineage (P. 1),
impacted the epidemiological profile of COVID-19 cases due to its higher transmissibility …

The Amazonas was one of the most heavily affected Brazilian states by the COVID-19
epidemic. Despite a large number of infected people, particularly during the second wave …

Coronavirus disease 2019 (COVID-19) pandemic has caused immeasurable impacts on the
health and socioeconomic system. The real-time identification and characterization of new …

The emergence and widespread circulation of severe acute respiratory syndrome
coronavirus 2 variants of concern (VOCs) or interest impose an enhanced threat to global …

Brazil ranks as third in terms of total number of reported SARS-CoV-2 cases globally. The
COVID-19 epidemic in Brazil was characterised by the co-circulation of multiple variants as …

Abstract Background The city of Manaus, north Brazil, was stricken by a second epidemic
wave of SARS-CoV-2 despite high seroprevalence estimates, coinciding with the …

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 …

Persistent ongoing transmission of the severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) at a global level has led to mutations in its genetic code that confer …

With the delta variant of COVID-19, known as B. 1.617. 2, quickly ramping up infections
around the world, we need to understand what makes this variant more contagious. One …