HC Deb 17 October 1972 vol 843 cc31-2W
Mr. Biggs-Davison

asked the Secretary of State for Social Services whether his Department have been kept informed of the progress and results of the research into the potential risk of chronic disease resulting from vasectomy conducted under the direction of Professor John Henry at Syracuse, New York, details of which have been sent to him; and what conclusions have been drawn.

Sir K. Joseph

I am aware of this research. It concerned only 12 men who had received vasectomies over a two-year period and reached only what Dr. Henry himself evidently called very tentative conclusions as to what the effects of the increased antibody levels in the blood might have. Further research, Dr. Henry is reported to have said, on a much larger scale and over a period of years would he required before any conclusions could be drawn.