About this episode:

Questions about vaccines and autism have been around for a while despite multiple scientific studies that do not show a connection. In this episode: where the concerns started, the science behind why experts have concluded there is no link, and why these questions still persist.

Guest:

Dan Salmon is the director of the Johns Hopkins Institute For Vaccine Safety.

Host:

Dr. Josh Sharfstein is vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg School of Public Health, a faculty member in health policy, a pediatrician, and former secretary of Maryland's Health Department.

Show links and related content:

• CDC Wants to Revisit Debunked Theories of Links Between Vaccines And Autism—Forbes

• Vaccines 101: Vaccine Safety Science—Public Health On Call (February 2025)

Transcript information:

Looking for episode transcripts? Open our podcast on the Apple Podcasts app (desktop or mobile) or the Spotify mobile app to access an auto-generated transcript of any episode. Closed captioning is also available for every episode on our YouTube channel.

Contact us:

Have a question about something you heard? Looking for a transcript? Want to suggest a topic or guest? Contact us via email or visit our website.

Follow us:

• @‌PublicHealthPod on Bluesky

• @‌JohnsHopkinsSPH on Instagram

• @‌JohnsHopkinsSPH on Facebook

• @‌PublicHealthOnCall on YouTube

• Here's our RSS feed

Note: These podcasts are a conversation between the participants, and do not represent the position of Johns Hopkins University.