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Immunocompetence is the ability of the body to produce a normal immune response following exposure to an antigen. Immunocompetence is the opposite of immunodeficiency or immuno-incompetent or immuno-compromised. Examples include:
- a newborn who does not yet have a fully functioning immune system but may have maternally transmitted antibodies - immunodeficient;
- a late stage AIDS patient with a failed or failing immune system - immuno-incompetent; or
- a transplant recipient taking medication so their body will not reject the donated organ - immunocompromised.
There may be cases of overlap but these terms all describe immune system not fully functioning.
The US Centers for Disease Control and Prevention (CDC) recommends that household and other close contacts of persons with altered immunocompetence receive the MMR, varicella, and rotavirus vaccines according to the standard schedule of vaccines, as well as receiving an annual flu shot. All other vaccines may be administered to contacts without alteration to the vaccine schedule, with the exception of the smallpox vaccine. Persons with altered immunocompetence should not receive live, attenuated vaccines (viral or bacterial), and may not receive the full benefit of inactivated vaccines.
- Immunopharmacology and Immunotoxicology (medical journal)
- National Center for Immunization and Respiratory, Diseases (Jan 28, 2011). "General recommendations on immunization - recommendations of the Advisory Committee on Immunization Practices (ACIP).". MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control 60 (2): 1–64. PMID 21293327.