Chicken interferon gamma has been proposed as a vaccine adjuvant and growth promoter for chickens  .
As mentioned above interferon gamma or molecules able to mimic or induce this cytokine may be of use in the treatment of sepsis.
In turn, T-cell regulation is kicked off by an immune system protein called interferon gamma 4.
Higher levels of endogenous interferon gamma were found in women with recurrent first trimester miscarriage compared to women with normal pregnancy.
Others point to decreased production of a hormone in the immune system called interferon-gamma that ordinarily helps to regulate the body's response to allergens.