Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài:" Impact on respiratory tract infections of heptavalent pneumococcal conjugate vaccine administered at 3, 5 and 11 months of age. | Respiratory Research BioMed Central Research Open Access Impact on respiratory tract infections of heptavalent pneumococcal conjugate vaccine administered at 3 5 and 11 months of age Susanna Esposito1 Alessandro Lizioli2 Annalisa Lastrico1 Enrica Begliatti1 Alessandro Rognoni1 Claudia Tagliabue1 Laura Cesati1 Vittorio Carreri2 and Nicola Principi 1 Address 1Institute of Pediatrics University of Milan Fondazione IRCCS Ospedale Maggiore Policlinico Mangiagalli e Regina Elena Milan Italy and 2Department of Health Sciences Regione Lombardia Milan Italy Email Susanna Esposito - Alessandro Lizioli - Alessandro_Lizioli@ Annalisa Lastrico - Enrica Begliatti - Alessandro Rognoni - rognonibros@ Claudia Tagliabue - hollie@ Laura Cesati - Vittorio Carreri - Vittorio_Carreri@ Nicola Principi - Corresponding author Published 21 February 2007 Received 30 August 2006 Respiratory Research 2007 8 12 doi l465-992l-8-l2 Accepted 2l February 2007 This article is available from http content 8 l l2 2007 Esposito et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Medical and public health importance of pneumococcal infections justifies the implementation of measures capable of reducing their incidence and severity and explains why the recently marketed heptavalent pneumococcal conjugate vaccine PCV-7 has been widely studied by pediatricians. This study was designed to evaluate the impact of PCV-7 administered at 3 5 and ll months of age on respiratory tract infections in very young children. Methods A total of
