When asked about the government's extension of the gap between two doses of Covishield, virologist Dr Gagandeep Kang said that the Covid-19 vaccines are new and experts are constantly trying to find the best way to use them. <br /> <br />In an exclusive interview with India Today's Rajdeep Sardesai, Dr Kang said that the data is strong for all the gaps between doses that have so far been implemented.