In a rational society that cares about its citizens, the 9%, 10% that don't get immunized is because they can't be immunized. You want the herd immunity to protect the weak. The people who are immune compromised, the people who have some genetic disorder, where they rely on you to be vaccinated. So I don't catch so they don't catch the disease. That's how we should be using herd immunity in a rational society. But it depends on the lethality of the drug and how quickly it spreads that will determine the exact herd immunity.
Neil deGrasse Tyson is an astrophysicist, author, and science communicator. He is the host of the weekly show “Star Talk” on National Geographic and the head of the Hayden Planetarium in New York City. He has a new book “Starry Messenger: Cosmic Perspectives on Civilization” out now.
Neil deGrasse Tyson joins the show to chat with Theo about cosmic musings, the new space race, facts vs. feelings, flat-earthers, climate change and much more.