Randeep Guleria, director of All India Institute of Medical Sciences (AIIMS)-Delhi, on Sunday said the current vaccines against Covid-19 could be tweaked to offer protection against newer variants of the contagion., Randeep Guleria, director of All India Institute of Medical Sciences (AIIMS)-Delhi, on Sunday said the current vaccines against Covid-19 could be tweaked to offer protection against newer variants of the contagion., , Read More
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