Data/hora: 01/06/2024 04:44:30

Provedor de dados: 	56	
País: 	Brazil	
Título: 	Immunogenicity of a 23-valent pneumococcal polysaccharide vaccine in Brazilian elderly	
Autores: 	Simonsen,V.; Brandão,A.P.; Brandileone,M.C.C.; Yara,T.I.; Di Fabio,J.L.; Lopes,M.H.; Jacob Filho,W.	
Data: 	2005-02-01	
Ano: 	2005	
Palavras-chave: 	Streptococcus pneumoniae; Vaccine; Pneumococcal polysaccharide vaccine; Immune response; Elderly subjects.	
Resumo: 	Serum antibodies specific for the capsular polysaccharides of Streptococcus pneumoniae provide protection against invasive pneumococcal infection. In Brazil, this vaccine has been used for people over 65 years with clinical risk to develop pneumococcal infection since 1999. We evaluated the immune response of 102 elderly subjects (75.5% females and 24.5% males) with a mean age of 71 years, and 19 young healthy adults (63.2% females and 36.8% males) with a mean age of 27 years. The elderly study group consisted of outpatients who received follow-up care in the Geriatric Department of General Hospital, Faculty of Medicine, University of São Paulo. None had acute illness at the time of vaccination. Both groups were immunized with one intra-deltoid injection with 0.5 ml of a 23-valent pneumococcal polysaccharide vaccine. The total IgG specific antibody concentrations to capsular polysaccharides 1, 3, 5, 6B, 8, and 14 were determined against pre- and 1-month post-vaccination sera. All samples were analyzed according to the second-generation pneumococcal polysaccharide ELISA protocol. We observed that the pneumococcal polysaccharide vaccine evoked consistent antibody increase for serotypes 1, 5, 6B, 8, and 14 (geometric mean concentration increase of 2.46 in the elderly and 2.84 in the young adults). Otherwise, we observed no increase in antibody concentration for serotype 3 in both groups.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000200014	
Editor: 	Associação Brasileira de Divulgação Científica	
Relação: 	10.1590/S0100-879X2005000200014	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Medical and Biological Research  v.38 n.2 2005	
Fonte: 	info:eu-repo/semantics/openAccess