[Humoral immune response to the capsular polysaccharide of Neisseria meningitidis serogroup C in an antimeningococcal BC vaccination trial in Antioquia, Colombia]. / Respuesta inmune humoral al polisacárido capsular de Neisseria meningitidis serogrupo C en un ensayo de vacunación antimeningocócica BC en Antioquia, Colombia.
Bol Oficina Sanit Panam
; 118(4): 295-301, 1995 Apr.
Article
em Es
| MEDLINE
| ID: mdl-7779284
ABSTRACT
As a complement to studying humoral immune response to the proteins of an antimeningococcal vaccine (VA-MENGOC-BC) against serogroups B and C, the humoral immune response to polysaccharide C of the vaccine was also evaluated in 142 children from 1 to 5 years of age in an area of the Department of Antioquia, Colombia. Paired pre-(T0) and post-vaccination (T1) sera were tested for IgG response by means of ELISA and for serum lytic capacity against a strain of serogroup C by means of the bactericidal antibodies test (BAT). Response to the vaccine was statistically significant (P < 0.01) by both techniques. PAB demonstrated seroconversion (T1/T0 > or = 4) in 88% (95% confidence interval, CI95% 80% to 95%) of all those who were seronegative before vaccination. The proportion of seroconversion in children 2, 3, and 4 years of age was 86% or more. Of all the sera tested with ELISA, 93% (CI95% 89% to 97%) showed response to the vaccine (T1/T0 > or = 2), and 98% (CI95% 94% to 100%) of the subjects with T0 < or = 500 U/mL seroconverted. In this sample, the vaccine stimulated a specific and protective response as measured by ELISA and BAT, the latter test being utilized to evaluate protection status.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos Bacterianos
/
Vacinas Bacterianas
/
Cápsulas Bacterianas
/
Anticorpos Antibacterianos
/
Neisseria meningitidis
Limite:
Child, preschool
/
Humans
/
Infant
País/Região como assunto:
America do sul
/
Colombia
Idioma:
Es
Ano de publicação:
1995
Tipo de documento:
Article