Interferons and interleukins?

Antiviral proteins produced by T cell lymphocytes

They are substances produced naturally by the human immune system which seem to kill tumor cells

Interferon's are proteins made by cells that are hosts to pathogens as a " cry for help " signal that recruits the body's defenses to pathogens and cancer cells.

Interferons are hormonelike peprides that lymphocytes and fibrolasts produce in response to viruses or tumor cells.

Not cheap ! I used to use 5miu pens but they were recalled. That used to cost (out of pocket) around $250.00 per month. Now, I get the powder and my cost is $901.00.