Part of an image from NIH depicting so-called "herd immunity." Measles outbreaks can more easily occur in communities where numbers of immunized people has dropped below a critical mass.
The U.S. declared measles eradicated in 2000 but refusal to vaccinate children among certain pockets of the population means the disease is resurging. Public health officials in this country say 10 states have reported cases in 2019 alone. Internationally, the World Health Organization recently named “vaccine hesitancy” as one of the top global threats of 2019.
How do public health officials confront those opposed to vaccination? And why has the movement proved so resilient? Diane talks with Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health.
Pulitzer Prize-winning biographer Jon Meacham on the evolution of Abraham Lincoln's moral principles and political leadership -- and what the era of Lincoln can teach us about the state of our democracy today.
What troubles at Twitter say about the state of social media -- and why one tech watcher argues this could transform the industry in positive ways.
Political analyst Norman Ornstein on control of Congress, the red wave that wasn't, and other lessons from the midterm elections.
At the end of the year Dr. Anthony Fauci will step down from his post as the nation's top infectious disease doctor. He talks to Diane about his 38 years on the job -- and what's next.
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