The WHO said Omicron had spread to 63 countries as of December 9.
from Top World News- News18.com https://ift.tt/31YgWjW
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from Top World News- News18.com https://ift.tt/31YgWjW
https://ift.tt/eA8V8J
Omicron Variant of Covid-19 Spreads Faster and Weakens Vaccine Efficacy, Says WHO
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