A study of the spike protein of SARS-CoV-2, the virus which causes Covid-19, suggests that current vaccines may be less effective against the Beta variant first identified in South Africa. Present on the surface of SARS-COV-2, spike proteins enable the virus to attach to and enter our cells, and all current vaccines are directed against them.from India News | Latest News Headlines & Live Updates from India - Times of India https://ift.tt/3A7GpEv
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