§ Mr. Viantasked the Minister of Health the reason for the change made in the number of live bacteria allowed in vaccine lymph; was a more potent lymph needed; and what safeguards are furnished for the protection of the public against the effects of lymph containing such large numbers of living bacteria?
§ Mr. E. BrownThe change to which my hon. Friend refers has been made to facilitate production of vaccine lymph, not to increase its potency. The increase of bacteria mentioned relates to harmless adventitious organisms found in lymph as taken from the calf, and the last part of the Question, therefore, does not arise. The safeguards against harmful micro-organisms remain as stringent as they have always been.