From 24th to 26th November 2021, a workshop in data analysis was conducted with professional from the Dirección General de Vigilancia de la Salud (DGVS) and the Programa Ampliado de Inmunizaciones (PAI) of the Ministry of Public Health and Social Welfare in Paraguay. Preliminary results were obtain for vaccine effectiveness against Delta and Gamma variants. Visits to a sentinel hospital for SARI surveillance and the National Laboratory (Instituto de Salud Pública) were conducted.