'Unvaccinated America' at risk of new Covid surge from aggressive 'Delta' variant

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Biden experiencing no reemergence of symptoms after testing positive for Covid again, White House says
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White House details physician's response to Biden contracting Covid
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Harris says Biden is in 'good spirits' as he recovers from Covid
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Andrea Mitchell recounts illnesses, health scares of former presidents
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UP NEXT
New school means new disease risks
06:38
Biden cleared for travel, public events after testing negative for Covid for second day
02:03
White House declares monkeypox a public health emergency
03:52
'Rebound' Covid infections after Paxlovid becomes focus of inquiry
02:15
Biden experiencing no reemergence of symptoms after testing positive for Covid again, White House says
11:20
How Worried Should You Be About Monkeypox?
15:05