'million kids hit': An estimated one million children have developed "vaccine failure" polio in India during the eighties as a result of the Union Government adhering to the WHO norm that three doses of oral polio vaccine will be adequate for immunisation. According to Dr. Jacob John, Professor and Head of Virology and Microbiology at the Christian Medical College Hospital, Vellore, even before the Expanded Programe on Immunisation (EPI) was launched by WHO in 1974, a series of careful investigations initiated at the request of and financially supported by, the WHO had shown clearly that in India three doses of oral polio vaccine(OPV) were inadequate to achieve optimum vaccine efficacy.