Highlights "We have placed orders for 1.5 crore vaccines and so far, the Central government has not allocated the numbers," Tamil Nadu Health Secretary Dr J Radhakrishnan said. The Health Secretary also said that there was sufficient stock of vaccines for those who are 45 and above. On April 19, the central government had permitted vaccination of those in the 18- 44 age category. New Delhi: The Tamil Nadu government on Friday (April 30) expressed doubts over the commencement of COVID-19 vaccination drive for the 18-44 years age group on May 1 amid uncertainty of vaccines supply. Tamil Nadu Health Secretary Dr J Radhakrishnan informed that the vaccines ordered by the state had not yet arrived and there was uncertainty about its arrival. “We have placed orders for 1.5 crore vaccines and so far, the Central government has not allocated the numbers. There is also no cavity on how many vaccines we would possibly get from the two makers - SII and Bharat Biotech”, Radhakrishnan said.