Why the BA.2 Subvariant Could Cause Covid-19 Cases to Rise - The Wall Street Journal

Some are optimistic that being fully vaccinated and boosted protects against severe disease.

The Omicron variant of the Covid-19 virus was responsible for a record wave of cases in the U.S. this winter. Although the surge has subsided, some health officials have warned of another rise relate… [+181 chars]

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