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J Med Microbiol 55 (2006), 751-757; DOI: 10.1099/jmm.0.46451-0
© 2006 Society for General Microbiology
ISSN 1473-5644

Phenotypic characterization of Neisseria meningitidis strains isolated from invasive disease in Brazil from 1990 to 2001

Ana Paula S. Lemos1, Angela P. Brandão1,2,3, Maria Cecília O. Gorla1, Maria Vaneide Paiva1, Vera Simonsen1 and Carmo Elias A. Melles1

1 Seção de Bacteriologia, Instituto Adolfo Lutz, Avenida Doutor Arnaldo, 355/9 ° andar, Cerqueira César, São Paulo, SP, 01246-902, Brazil

2 Fundação Oswaldo Cruz, Rio de Janeiro, RJ, 21045-900, Brazil

3 Fundação Nacional de Saúde, São Paulo, SP, 01220-000, Brazil

Correspondence
Angela P. Brandão
abrandao{at}ial.sp.gov.br

Received 2 December 2005
Accepted 14 February 2006

Phenotype characterization of 11 181 invasive Neisseria meningitidis isolates collected in Brazil from 1990 to 2001 was performed. Based on laboratory data, there were 7436 (67 %) serogroup B isolates, 3391 (30 %) C, 236 W135, 51 Y, four 29E, three X, one Z, and 59 of unknown serogroup. Phenotype B : 4,7 : P1.19,15 (54 %) remained the most common during the whole of the 12-year period. Two waves were observed within the serogroup C population: the most frequent phenotype C : 2b : P1.3 (47 %) was replaced after 1998 by non-typable isolates (C : NT : NST) (16 %).

Abbreviations: CRNM, Centro de Referência Nacional para Meningites (National Reference Centre for Meningitis Brazil); ET, electrophoretic type; MD, meningococcal disease; Men, Neisseria meningitidis; MenA, -B, -C, -29E, -W, -X, -Y, -Z, N. meningitidis serogroup A, B, C, 29E, W135, X, Y, Z, respectively; NST, non-serosubtypable; NT, non-serotypable; OMP, outer-membrane protein.




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