Journal of travel medicine
-
The Delta variant is now replacing all other SARS-CoV-2 variants. We found a mean R0 of 5.08, which is much higher than the R0 of the ancestral strain of 2.79. Rapidly ramping up vaccine coverage rates while enhancing public health and social measures is now even more urgent and important.
-
Since March 2020, 11 lineages of severe acute respiratory syndrome coronavirus 2 have been identified in Sergipe state, Northeast Brazil. During the first 6 months of coronavirus disease 2019 (COVID-19) outbreak, there was a higher frequency of B.1 (58.5%) and B.1.1.33 (17.1%) lineages. During the second wave of COVID-19, there was an increased frequency of P.1 (55.6%), the new Brazilian variant of concern.