Oxidative stress in immunocompetent patients with severe community-acquired pneumonia. A pilot study S. Trefler, A. Rodríguez, I. Martín-Loeches, V. Sanchez, J. Marín, M. Llauradó, M. Romeu, E. Díaz, R. Nogués, M. Giralt

Four cases of unexpected severe community-acquired pneumonia aetiology: Group A Streptococcus pyogenes disruption Mónica Talavera, Almudena Martínez, Carlos Vicent, Juan Frasquet, Ángel Orera, Paula Ramírez

Community-acquired Legionella Pneumonia in the intensive care unit: Impact on survival of combined antibiotic therapy J. Rello, S. Gattarello, J. Souto, J. Sole-Violan, J. Valles, R. Peredo, R. Zaragoza, L. Vidaur, A. Parra, J. Roig