Human Abo Blood Group Antigens on Spermatozoa From Secretors and Non-Secretors

Summary. Washed spermatozoa from an O non-secretor have been incubated with seminal plasma from an A secretor and have been shown then to have developed the capacity of inhibiting anti-H and anti-A test solutions. This demonstration is in agreement with the findings of Edwards, Ferguson & Coombs (1964) who, in contrast to earlier workers, were unable to detect ABO blood group antigens on spermatozoa from non-secretors, though they were able to detect them on spermatozoa from secretor donors.