Reports of new cases were nearly flat in the United States at the beginning of April, but as the month draws to a close, they are increasing in all but three states, signaling a wave that is increasingly national in scope.
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“Most of the cases are relatively mild,” said Dr. Eric S. Toner, a senior scholar at the Center for Health Security at the Johns Hopkins Bloomberg School of Public Health.
The recent increase was once concentrated in the Northeast, but the effects of the highly contagious BA.2 subvariant is growing more geographically diverse. In the last two weeks, cases have more than doubled in states from West Virginia to Utah.
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