§ 29. Mr. Madelasked the Secretary of State for Social Services what is his latest estimate of the proportion of children who are not being vaccinated against poliomyelitis.
§ Mr. MoyleIt is estimated that about 26 per cent. of children have not been vaccinated against poliomyelitis by the end of the second year after their year of birth. The proportion who remain unvaccinated by the age of 16 is likely to be of the order of 15 per cent. The estimates are based on information up to the end of 1976. Information for 1977 is not yet available.