“…which is predominant in most other secretions has been also demonstrated in cer vical mucus [8,9,10]. Besides immunoglobulins, chemical analysis of human cervico-vaginal secretions has revealed the presence of albumin, lactoferrin, blood group substances, glycoproteins of mucin class [9,10,11,12,13,14] as well as various enzymes such as lysozyme [15] and mucopolysaccharidase [11],…”