A row has erupted over the extension of the gap between two Covishield doses. Was the change made due to vaccine shortages or on scientific advice? <br /> <br />There was no dissenting voice among the members of the National Technical Advisory Group on Immunization (NTAGI), he said, according to a tweet by the Union health ministry. <br /> <br />Meanwhile, Union Health Minister Harsh Vardhan tweeted on Wednesday: "Decision to increase the gap between administering two doses of Covishield has been taken in a transparent manner based on scientific data. India has a robust mechanism to evaluate data. It's unfortunate that such an important issue is being politicised!"
