Health Ministry warns of COVID-19 clusters in India
The Hindu
Some mutations may decrease efficacy of existing vaccines, it says.
Cautioning that a few clusters of infection have been reported from the country, the Health Ministry on Friday said some of the mutations reported on the spike gene of new may decrease the efficacy of existing vaccines.
The Ministry added that vaccine protection is by antibodies as well as cellular immunity, which is expected to be relatively better preserved.
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