The study "Three-quarters attack rate of SARS-CoV-2 in the Brazilian Amazon during a largely unmitigated epidemic", which discusses the rapid spread of Covid-19 in the state of Amazonas, was published on December 8th, 2020, in the scientific journal Science. As a final result, research points out that when poorly controlled, coronaviruses can infect a large fraction of the population causing high mortality.
The study was carried out jointly with researchers from the United Kingdom, the United States and Brazil - represented by the study group of Professor Ester Cerdeira Sabino, from the Infectious and Parasitic Diseases Department of Faculdade de Medicina da Universidade de São Paulo (FMUSP) and leader of the Cadde project (Brazil-UK Centre for (Arbo)virus Discovery, Diagnosis, Genomics and Epidemiology), funded by FAPESP (The São Paulo Research Foundation).
"This research aimed to understand how many people were infected (attack rate) by SARS-Cov2 in São Paulo and Manaus and was made possible by long-term studies such as the REDS project that analyzes Brazilian blood centers data since 2007", added Professor Ester Sabino.
More details of the study in the article published in the Jornal da USP: https://jornal.usp.br/ciencias/mesmo-com-76-de-infectados-epidemia-em-manaus-nao-acabou/
Full study in Science: https://science.sciencemag.org/content/early/2020/12/07/science.abe9728