In-hospital case fatality ratio due to COVID-19 in four Brazilian state capitals and its possible temporal relationship with the Gamma variant, 2020-2021.
Jesem Douglas Yamall OrellanaLihsieh MarreroBernardo Lessa HortaPublished in: Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil (2021)
In January/2021, in-hospital and ICU case fatality ratios decreased or remained stable in the four state capitals, especially in Manaus, and during the epidemic peak with the prevalence of the Gamma variant.