الصفحة الرئيسيةNDTV News - Topstories Third COVID-19 Booster Dose Effective Against Omicron: UK Study byashif raza -ديسمبر 10, 2021 0 تعليقات A third booster dose of COVID-19 vaccine provides 70-75 per cent protection against symptomatic infection from the Omicron variant, the UK Health Security Agency (UKHSA) said on Friday.
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