Vaccines and Herd Immunity, An Explainer

The Brian Lehrer Show | Feb 2, 2015

Measles was eradicated in the U.S. in 2000, but there are at least 102 reported cases of the disease this year.

As the measles outbreak that started in Southern California continues to spread, Stephen Morse, epidemiologist from the Mailman School of Public Health at Columbia University, explains why herd immunity is so necessary to prevent a serious outbreak, what the anti-vaccine movement has to do with it, and takes your questions. Plus: why private schools could be an engine for risk.

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Jack Schlossberg, the Kennedy Running for Congress in New York. Plus, the Astronaut Reid Wiseman

The candidate on the role of social media in politics, and speaking out against his cousin R.F.K., Jr. Plus, the commander of NASA’s Artemis II mission on the dark side of the moon.

The New Yorker Radio Hour |

NJ Gov. Sherrill: If state police were too aggressive at Delaney Hall, we'll look into it

New Jersey Gov. Mikie Sherrill took call after call Wednesday night from people who told her state police had been overly aggressive in violent clashes with protesters outside the Delaney Hall immigration detention center this weekend.

Ask Governor Sherrill |

I.C.E.'s "Wartime Recruitment" Campaign

Hiring at the highest-funded U.S. law enforcement agency.

On the Media |

Ask the Mayor Recap and More News From City Hall

Elizabeth Kim discusses the issues Mayor Mamdani talked about in his first "ask the mayor" segment.

The Brian Lehrer Show |