AIIMS Director, Dr Randeep Guleria, explains that vaccines induce T-cell immunity for long-term protection against viruses but in order to determine their efficacy against mutations, more data is required. Referring to a more contagious mutation of the coronavirus first detected in the UK, he said if the virus strain mutates significantly, vaccines may have to be tweaked.
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NDTV is one of the leaders in the production and broadcasting of un-biased and comprehensive news and entertainment programmes in India and abroad. NDTV delivers reliable information across all platforms: TV, Internet and Mobile.
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