Potency control of diphtheria component in adsorbed vaccines by in vitro Neutralization Tests
Biologicals
; 30(2): 105-112, 2002.
Article
em En
| SES-SP, SESSP-IBPROD, SES-SP, SESSP-IBACERVO
| ID: biblio-1060847
Biblioteca responsável:
BR78.1
Localização: BR78.1
ABSTRACT
Samples from 20 lots of dT vaccine and from 20 lots of DTP vaccine were used to standardize and validate the Vero cell and the toxin binding inhibition (ToBI) tests for the potency control of diphtheria component. For the Vero cell method, violet crystal solution was used to stain the cells and estimate the endpoint of diluted diphtheria antitoxin. Diphtheria anatoxin was used for performing the ToBI test instead of toxin. The results obtained by both in vitro tests were similar to those obtained by in vivo toxin neutralization test in guinea pigs. The various analysis and the ÷2 test applied to evaluate the reproducibility and homogeneity, respectively, among in vitro tests and in vivo toxin neutralization test did not detect statistical significant difference for both analysed vaccines. An excellent correlation among in vitro tests and in vivo neutralization test was observed by Spearman's correlation coefficient.
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Coleções:
06-national
/
BR
Base de dados:
SES-SP
/
SESSP-IBACERVO
/
SESSP-IBPROD
Assunto principal:
Vacina contra Difteria, Tétano e Coqueluche
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Biologicals
Ano de publicação:
2002
Tipo de documento:
Article