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  • Title: Expression of an immunoreactive 72 kDa protein in strains of Haemophilus influenzae biogroup aegyptius associated with Brazilian purpuric fever.
    Author: Lesse AJ, Bittner WE.
    Journal: Microb Pathog; 1993 Oct; 15(4):319-26. PubMed ID: 8309358.
    Abstract:
    Brazilian purpuric fever (BPF) is a newly described pediatric syndrome that results in significant morbidity and mortality. BPF is caused by specific phenotypic strains of Haemophilus influenzae biogroup aegyptius that are capable of intravascular survival. Immunoblotting of outer membrane proteins of H. influenzae biogroup aegyptius with normal human serum showed that most virulent strains of H. influenzae biogroup aegyptius associated with BPF expressed an immunologically prominent protein at 72 kDa. A corresponding protein in avirulent isolates migrated at 79 kDa. Although a minor component on SDS-PAGE analysis of the outer membrane, specific antibody against this protein is present in high concentrations in normal human serum.
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