Full NIH Director Interview: 'We don't really quite know' when herd immunity begins with Covid
09:07
In an exclusive interview with Meet the Press, Dr. Francis Collins, Director, National Institutes of Health, talks to Chuck Todd about the Johnson and Johnson vaccine and the latest on heard immunity.April 25, 2021
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Full Buffalo Mayor: 'We have to take action to stop' mass shootings
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Full New York Gov.: 'I have 10 dead neighbors in this community'
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Full Panel: ‘It feels like nothing has changed’ on mass shootings
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Full Sanders: 'How could anyone think that what's going on right now is good'
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Full Panel: Two parties with two very different sets of challenges on primary night