immunosuppression

From immuno- +‎ suppression.

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immunosuppression (usually uncountable, plural immunosuppressions)

1. (immunology, medicine) The suppression of the immune response, especially its active medical suppression by human agency (via immunosuppressant drugs) to treat autoimmune diseases or to prevent allograft rejection after transplant.
   • 2015 August 29, “Different Blood Cell-Derived Transcriptome Signatures in Cows Exposed to Vaccination Pre- or Postpartum”, in PLOS ONE‎^[1], →DOI:

     It has been reported that periparturient cows undergo a period of immunosuppression of various immunological parameters associated with a high susceptibility to uterine and mammary infections […]

Some writers reserve the word immunosuppression for the active and intentional hyponymous subset of immunodeficiency, but this usage prescription is not widely followed, as the attested strength of the collocation immunosuppression by HIV illustrates.

• immunocompromise (noun)
• immunodeficiency

• immunocompetence
• immunocompetency