Banho, Sacchetto et al. perform a genomic epidemiology study of the introduction of the SARS-CoV-2 Gamma variant in a city in Brazil. They show that Gamma displaced seven other circulating variants, led to a rapid increase in COVID-19 prevalence, and to increased risk of severe disease and mortality, especially in the unvaccinated population.
- Cecília Artico Banho
- Lívia Sacchetto
- Mauricio Lacerda Nogueira
