This yearly international meeting, 'Infections in the Critically Ill Patient' (3-4 February 2012, Barcelona, Spain) attended by 300 people from many different countries, was the 17th edition. This meeting gathers scientists from different horizons: microbiologists, infectious diseases specialists, intensivists and researchers in the fields of the meeting: sepsis, severe infections and pneumonia. This multidisciplinarity allows a rich cross-fertilization and outstanding discussions. This document summarizes the full day devoted to pulmonary infections and resistance to antibiotics.