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Immunogenicity study of Haemophilus influenzae type B conjugate vaccine in Indian infants.
Indian Pediatr ; 1997 Sep; 34(9): 779-83
Article Dans Anglais | IMSEAR | ID: sea-13191
ABSTRACT

OBJECTIVE:

To assess the immunogenicity in Indian infants to Haemophilus influenzae b oligosaccharide conjugate vaccine (HbOC).

DESIGN:

Prospective multicenter study.

SETTING:

Pediatric Out Patient Department of general hospitals in Pune and Mumbai.

SUBJECTS:

124 full term healthy infants brought for routine DPT/OPV immunization.

METHODS:

Infants were administered 3 doses of 0.5 ml of HbOC, on the same day as their DPT/OPV immunization, injected intramuscularly on the limb opposite to that where DPT vaccine was administered. Data on local reactions and general symptoms was collected for three days after every dose. The children had their blood collected for assay of anti PRP (polyribosil ribitol phosphate) antibody titers, along with the first injection and one month after the third injection. One hundred and three infants completed the study protocol with two blood collections.

RESULTS:

The initial geometric mean titers (GMT) of 0.124 mcg/ml rose by 37 times to 4.552 mcg/ml. Ninety eight children (95.1%) had a final titer of > or = 0.15 mcg/ml, the minimum level associated with protection, and 77 children (74.8%) had a final level of > or = 1.0 mcg/ml, a level associated with long term protection.

CONCLUSION:

HbOC is immunogenic in Indian infants when used as per the locally recommended DPT/OPV immunization schedule.
Sujets)
Texte intégral: Disponible Indice: IMSEAR (Asie du Sud-Est) Sujet Principal: Polyosides bactériens / Femelle / Humains / Mâle / Haemophilus influenzae / Études prospectives / Calendrier vaccinal / Capsules bactériennes / Vaccins anti-Haemophilus / Infections à Haemophilus Type d'étude: Essai clinique contrôlé / Étude observationnelle Pays comme sujet: Asie langue: Anglais Texte intégral: Indian Pediatr Année: 1997 Type: Article

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Texte intégral: Disponible Indice: IMSEAR (Asie du Sud-Est) Sujet Principal: Polyosides bactériens / Femelle / Humains / Mâle / Haemophilus influenzae / Études prospectives / Calendrier vaccinal / Capsules bactériennes / Vaccins anti-Haemophilus / Infections à Haemophilus Type d'étude: Essai clinique contrôlé / Étude observationnelle Pays comme sujet: Asie langue: Anglais Texte intégral: Indian Pediatr Année: 1997 Type: Article