As 'stealth Omicron' advances, scientists are learning more
The coronavirus variant known as BA.2, or the 'stealth Omicron,' now causes more than a third of new Omicron infections around the world.
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The coronavirus variant known as BA.2, or the 'stealth Omicron,' now causes more than a third of new Omicron infections around the world.
Cases of the highly-contagious omicron variant continue to decrease in South Florida after reaching a peak last month.
Experts say BA.2 version of Omicron, which has spread into at least 40 countries, is harder to detect
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A descendant of the omicron variant has been found in at least 40 countries, including the United States. Learn more at Boston.com.