The 'stealth' variant is now the dominant strain in the United States, making up 55 percent of cases, the Centers for Disease Control and Prevention () reports. Despite the highly infectious nature of the variant, which is a lineage of the variant, case and death total in America remain near pandemic lows.The agency revealed data Tuesday as part of its weekly Nowcast surveillance. The Omicron variant as a whole still remains the dominant strain in the U.S., but BA.2 has overtaken the BA.1 lineage that caused massive worldwide virus surges around the new year.The 'stealth' variant, which earned the moniker from its ability to avoid detection through some sequencing methods, is believed to be the most infectious version of Covid yet - but is just as mild as BA.1.
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