Determination of antibodies to pertussis toxin in working reference preparations of anti-pertussis sera from various national control laboratories.
Working reference preparations of anti-pertussis sera from various National Control Laboratories were assayed for anti-PT antibodies by standardized ELISA and toxin neutralization (Nt) test. Both the ELISA and Nt tests gave highly reproducible results for various preparations when these preparations were assayed repeatedly on different days. Various working reference preparations were assigned units against the proposed International standard for anti-pertussis serum (JNIH-10) assuming its unitage of 250. Assigning unitage to various preparations would help in comparing results of ELISA and Nt tests for anti-PT antibodies reported in various studies.
Relyveld
E
E
Institut Pasteur Fondation, Unite des Vaccins Bacteriens, Marnes-La-Coquette, France.
Oato
N H
NH
Huet
M
M
Gupta
R K
RK
D000907:Antibodies, Bacterial / Q000097:blood*; D001886:Bordetella pertussis / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D005069:Evaluation Studies as Topic; D006801:Humans; D007394:International System of Units / Q000592:standards; D009500:Neutralization Tests; D037342:Pertussis Toxin; D012015:Reference Standards; D010566:Virulence Factors, Bordetella / Q000276:immunology*
D000907:Antibodies, Bacterial; D010566:Virulence Factors, Bordetella; D037342:Pertussis Toxin