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Recently government extended the second dose time of Covishield from 6-8 weeks to 12-16 weeks. However, for Covaxin second dose time interval was unchanged and it can be taken after four weeks.
The decision to increase the interval between two doses of Covishield was taken because the first dose of Covishield can develop a strong immunity.
According to Indian Council of Medical Research (ICMR) head Dr Balram Bhargava, the immunity after the first dose of Covishield was found to be strong and that the three months gap will give the best results, a report in Times of India said.
However, the immunity level produced after the first dose of Covaxin is not as high and “this means the second dose should be taken after four weeks to ensure full efficacy”, the TOI report quoted him as saying.
