Tuesday was a "landmark day," as the United States reached a new COVID-19 vaccine milestone: 60% of adults have now received at least one dose of COVID-19 vaccine, according to the US Centers and Disease Control and Prevention.
But vaccination rates across the United States are uneven -- a worrisome trend that could obstruct efforts to end the COVID-19 pandemic. Rates range from more than 78% of adults in Vermont with at least one vaccine to less than 45% of adults in Mississippi.
And over the past week, states with higher vaccination rates have generally had lower COVID-19 case rates, a CNN analysis of data from the CDC and Johns Hopkins University found.
Seven states have already reached the Biden administration's goal of vaccinating at least 70% of adults with at least one shot by July 4, data from CDC shows: Connecticut, Hawaii, Maine, Massachusetts, New Hampshire, New Jersey and Vermont.