Salivary protein which prevents transmission of human immunodeficiency virus via saliva is:: (A) Sialoperoxidase, (B) Secretory IgA, (C) Salivary leukocyte proteinase inhibitor, (D) Histidine rich proteins
Answer is C. Salivary protein which prevents transmission of human immunodeﬁciency virus via  saliva is salivary leukocyte proteinase inhibitor.