By A Staff Reporter : The first dose is responsible for 98.9 % vaccine effectiveness and if both doses are given then it is 99.3 % effective. That is what ICMR DG Dr. Balram Bhargava said.In his words, ''India is the second country which is having a vaccine tracker. During 2022, 92% of deaths have been due to unvaccinated individuals.Vaccine effectiveness in mortality prevention has been measured. The first dose is responsible for 98.9 % vaccine effectiveness and if both doses are given then it is 99.3 % effective.''