How does S-Acetyl Glutathione work for infections?

Here is the link to the research. http://mkt.s.designsforhealth.com/techsheets/S-Acetyl_Glutathione_Synergy_References.pdf. For general inquiries as to the medical research on a 

specific topic that they visit: http://www.ncbi.nlm.nih.gov/pubmed.