President Joe Biden hoped to get 70 percent of Americans vaccinated by July 4, but the White House announced last week .
The real race is not towards the Independence Day deadline, but against the spread of the 鈥� a strain of COVID-19 believed to be more transmissible and dangerous than its predecessors.
Nearly half of all Americans have been fully vaccinated, but two groups are still lagging behind: and residents in some .
During the series 鈥淰accination Nation,鈥� we talk with a panel of experts to answer questions about the latest vaccine news.
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