§ Mr. Carter-Jonesasked the Minister of Overseas Development what studies are being undertaken to develop inactivated vaccines which do not need to be kept at specially low temperatures for use in developing countries; and if she will make a statement.
§ Mr. TomlinsonThe National Institute of Biological Standards and Control and the London School of Hygiene and Tropical Medicine are both working on the development of inactivated vaccines and the improvement of stability in[...] 209W vaccines against measles and poliomyelitis. Studies are also continuing, under the auspices of the World Health Organisation, on the use of inactivated Salk poliomyelitis vaccine in the tropics. On the evidence presently available, inactivated vaccines are unlikely to provide effective immunity against tuberculosis, measles, German measles and mumps.