The goal is to evaluate the dataset to write an abstract for submission to the Brazilian Congress of Infectious Diseases. The analysis will focus solely on Brazil isolates.

The goal is to evaluate the trends in carbapenem resistance mechanisms over different years by analyzing isolates from Brazil. The epidemiological data is very important for Brazilian healthcare professionals since there is limited data available regarding Gram-negative bacteria resistant to carbapenems that produce carbapenemases. The results will be also helpful to understand the future scenario in Brazil for aztreonam-avibactam.