HC Deb 24 November 1942 vol 385 cc677-8W
Mr. Viant

asked the Minister of Health what alterations have been made in the regulations governing the production of calf lymph; and whether more living bacteria are allowed in the lymph than formerly?

Mr. E. Brown

I have recently made an Order modifying the tests for the purity of vaccine lymph. The new Order allows an increase in the total number of living bacteria and other visible micro-organisms, but it provides safeguards against harmful micro-organisms which are at least equal to those previously prescribed. I am sending a copy of the Order to my hon. Friend.