What are applications of usage of recombinant cytokines in immunotherapy of chronic infections/

Chronic hepatitis B and hepatitis C — IFN-a (Roferon): Inhibits viral propagation in healthy cells — Pegylated IFN-a (Rebetol) less degradable (adults only) — Approved by the FDA HIV: — IFN-a for the treatment of Kaposi sarcoma (approved by the FDA) — IFN-g prevents mother-fetus transmission of HIV — IL-2 combined to 2 anti-retroviral drugs increases the number of CD4 cells Herpes simplex: IFN a