The World Health Organization declared the new Omicron variant a global concern due to its high number of mutations. Several countries have imposed travel bans and restrictions to prevent the spread of the highly transmissible variant. Scientists are racing to determine the severity and effectiveness of existing vaccines against Omicron.

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The emergence of the Omicron variant has raised alarm worldwide, leading to swift actions by governments and heightened research efforts by scientists. The effectiveness of current vaccines against this highly mutated strain remains a critical focus in the ongoing battle against COVID-19.