According to the latest estimates from the Centers for Disease Control and Prevention, an omicron subvariant that has been the dominant strain of COVID-19 in the U.S. for more than a month is beginning to lose steam, and yet another variant of omicron is quickly gaining momentum.
Those estimates indicate that the BA.2.12.1 lineage of omicron continues to be the dominant strain of COVID-19 in the United States, andThat number continues to decline however as another strain, the BA.5 subvariant, continues to gain momentum, making up an estimated 23.5% of cases in the last week.
Those increases paint a troubling picture, as recent studies have suggested that previous coronavirus infections and COVID-19 vaccinations are less effective at preventing infection against the BA.4 and BA.5 omicron subvariants. Stay informed during the severe weather season with our local news and weather app. Get the NBC 5 Chicago app for
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