Duarte Guerreiro (PATHSENSE ESR no. 3), a PhD candidate in Dr. Conor O’Byrne’s Lab in Microbiology, School of Natural Sciences at the National University of Ireland, Galway (Ireland) spent his first secondment under the supervision of Prof. Jörgen Johansson in the Department of molecular biology, Umeå University (Sweden). Himself and PATHSENSE ESR no8. Ana Oliveira (Umeå) worked hard to produce some exciting results to bring back to Galway!