Inherited complement deficiencies and bacterial infections

Francesco Tedesco

Research output: Contribution to journalArticlepeer-review


A wide variety of bacteria are recognized by the complement system through the early components that trigger the three pathways of complement activation, leading to the release of biologically active products involved in opsonization, recruitment of phagocytes and bacterial killing. Deficiencies of complement components and regulators provide a model to understand the in vivo role of complement as a defense system against bacterial infections. An increased susceptibility to these types of infections is frequently seen in individuals with C2, C3, late component, properdin and factor I deficiencies. The identification of these deficiencies is essential for the adoption of preventive measures aimed to reduce the risk of bacterial infections. Vaccination represents the treatment of choice to protect these subjects, although further studies on a large number of C-deficient individuals are needed to prove the protective effect of vaccines.

Original languageEnglish
Issue numberSUPPL. 8
Publication statusPublished - Dec 30 2008


  • Complement
  • Diagnosis and vaccination
  • Inherited deficiencies

ASJC Scopus subject areas

  • Immunology and Microbiology(all)
  • Infectious Diseases
  • Public Health, Environmental and Occupational Health
  • veterinary(all)
  • Molecular Medicine


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