Aleksandra Kovacevic is a mathematical modeller in infectious disease epidemiology at Institut Pasteur. She is investigating an optimization of antibiotic and vaccine use in populations to prevent infections with antibiotic resistant bacteria, a project funded by the French Government’s “Investissement d’Avenir” program – Labex-IBEID (ANR-10-LABX-62 IBEID) and conceived by Dr Lulla Opatowski (Institut Pasteur, UVSQ, CESP, INSERM, Université Paris-Saclay).