Isabelle Caldelari is an associate professor in Microbiology at the University of Strasbourg (France) and is working as a researcher at the CNRS. She started her research career with a phD at the University Hopital of Lausanne in Switzerland, where she deciphered the molecular mechanisms involved in beta-lactams resistance and tolerance. As a post-doctoral fellow (2000-2009), she moved to the ETH in Zurich (Switzerland) and the John Innes Centre in Nowich (UK), where she has built up her expertise in molecular microbiology and acquired knowledge in host-pathogen interactions. Since 2009, she joined Pascale Romby’s team of "mRNAs and regulatory RNAs in bacteria”" in UPR 9002 at the CNRS. Her research program is focused on RNA regulation in the the human opportunistic pathogen Staphylococcus aureus.