MBL deficiency

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MBL deficiency
I-IV) Molecular defects in mannose binding lectin pathway in dermatological disease[1]

MBL deficiency is a pathology of the innate immune system involving Mannan-binding lectin pathway components such as MBL2.

It is thought that 5–10% of the population have an MBL deficiency of some degree.[2] There are varying degrees of MBL deficiency; some people will not even know they have the deficiency, while others may have such low levels that they experience infections with great frequency. Babies and young children are most at risk.


  1. Miller, Christopher; Wilgenbusch, Sara; Michael, Mini; Chi, David S; Youngberg, George; Krishnaswamy, Guha (25 March 2010). "Molecular defects in the mannose binding lectin pathway in dermatological disease: Case report and literature review". Clinical and Molecular Allergy : CMA. 8: 6. doi:10.1186/1476-7961-8-6. ISSN 1476-7961. Archived from the original on 12 November 2022. Retrieved 11 November 2022.
  2. "Mannose-binding lectin deficiency". Genetics Home Reference. U.S. National Library of Medicine. Archived from the original on 2022-11-12. Retrieved 2020-02-04.

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