Table 1

Host Immune Defense Mechanisms

Non-Specific

Specific

Barriers

Humoral* (Antibodies)

Skin

Cellular* (Lymphocytes)

Secretions (mucous, tears, saliva)

Mucociliary clearance

Peristalsis

Phagocytes

Complement

CRP and others

Cytokines

Pathogen recognition receptors*

*Major components affected in primary immune deficiency

Song et al. Clinical and Molecular Allergy 2011 9:10   doi:10.1186/1476-7961-9-10