| Literature DB >> 3433915 |
Abstract
Pertussis vaccine depleted of endotoxin by the polymyxin-Sepharose affinity chromatography method was tested for toxic activity and protective effectiveness in mice. Preparations containing 1000-fold and 1 000 000-fold less endotoxin fulfilled the established experimental criteria for freedom from toxicity. A fourfold concentrate of the former demonstrated a protection rate only 10% less than that of standard, untreated pertussis vaccine.Entities:
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Year: 1987 PMID: 3433915 DOI: 10.1016/0264-410x(87)90149-6
Source DB: PubMed Journal: Vaccine ISSN: 0264-410X Impact factor: 3.641