Furthermore, clinical signs, immunological assays or biomarkers that can differentiate severe viral infection from a viral infection enhanced by an immune mechanism have not been established 49,52
Since no human clinical trials exist, these numbers are based on animal research and years of community experience
Low natural killer cell cytotoxic activity in autism: the role of glutathione, IL-2 and IL-15

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In these studies, Epithalon administration in elderly or immunosuppressed animals leads to increased production of thymic peptides and improved immunological parameters, including CD4/CD8 ratios and natural killer (NK) cell activity [3]