In partnership with the General Coordination of Public Health Laboratories of the Ministry of Health (CGLAB/SVS/MS), the Oswaldo Cruz Institute (IOC/Fiocruz) promoted training for professionals from eight states and the Federal District between September 21st and 30th. Training for molecular detection of SARS-CoV-2 in wastewater was provided by the Laboratory of Respiratory and Measles Viruses of IOC.