RT Journal Article SR Electronic T1 Seasonality in airway pathogens during the first year after lung transplantation: A single center experience JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P2445 VO 40 IS Suppl 56 A1 Zsuzsanna Kovats A1 Zoltan Sutto A1 Gabriella Murakozy A1 Aniko Bohacs A1 Csaba Vajai A1 Krisztina Czebe A1 Gyorgy Losonczy A1 Veronika Muller YR 2012 UL http://erj.ersjournals.com/content/40/Suppl_56/P2445.abstract AB After lung transplantation (LuTx) high level of immunosuppression is needed to prevent rejection, which makes recipients more susceptible to infections. Pulmonary infections are a major clinical problem during the first postoperative year and regular surveillance examinations and immediate adequate treatment is mandatory. As seasonality of respiratory tract infections is well known in chronic pulmonary diseases, we assessed pathogen spectrum and number of infections in the first postoperative year in LuTx recipients.Airway pathogens registered during the first posttransplant year in 16 Hungarian LuTx patients (underlying disease: cystic fibrosis: 8, interstitial lung disease: 4, obstructive lung disease: 3, primary pulmonary hypertension: 1) were analyzed. Microbiological samples were taken from upper and/or lower respiratory tract and serum as part of the routine care. Number of positive samples was analyzed according summer (S=March to August) and winter (W=September to February) period.A total of 107 infections were registered during the first posttransplant year. The most frequent pathogens were Gram negative bacteria (n=48) and fungi (n=33). Total number of respiratory infections in S were significantly less frequent as compared to W (S=40, W=67; including Gram positive: S=8, W=11; Gram negative: S=16, W=31; fungi: S=13, W=20; other: S=4, W=4) independent of the season when LuTx was performed. We report increased number of respiratory tract infection in W period in the first postoperative year in LuTx recipients. More intensive vigilance for possible infections is needed during the W period in these patients.