New Delhi: It is important to have a large basket of COVID-19 vaccines as it is really difficult to know which one is going to be the best among the lot, Department of Biotechnology secretary Renu Swarup said on Friday.She said the vaccines that are being developed indigenously are on different platforms and each has its own benefits and challenges."It is important to have a large basket of vaccines as we move forward because we really don't know which one is going to be the best."It is not necessary that the first one is the best, you may have one coming later which is going to be better but it is difficult to say right now," she said at a webinar.There are 30 vaccine candidates which are being developed within the country.
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