WHO says India Covid variant of 'global concern' The WHO says the B.1.617 mutation spreads more easily than other variants and requires further study.
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2026. Május 27. Hella napja van
2026. Május 27. Hella napja van
WHO says India Covid variant of 'global concern' The WHO says the B.1.617 mutation spreads more easily than other variants and requires further study.
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Toplista
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