Omicron shows higher vaccine unresponsiveness and vaccine failure, the surgeon said

Omicron more infectious than Delta variant: Medanta Hospital senior surgeon

The results were observed among individuals previously vaccinated with either Vaxzevria or an mRNA vaccine

AstraZeneca Covid vaccine\'s third dose ups antibody response to Omicron: Study

One more engine will undergo two short-duration tests and one long-duration test to complete the cryogenic engine qualification

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