The Johns Hopkins Bloomberg School of Public Health

Public Health On Call

News EN ↓ 1170 episodes

Evidence and experts to help you understand today's public health news—and what it means for tomorrow.

Author

The Johns Hopkins Bloomberg School of Public Health

Category

News

Podcast website

publichealth.jhu.edu

Latest episode

Jul 9, 2026

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Episodes

851 - Policing With a Public Health Lens in South Dakota 14.02.2025

About this episode: Traditional police work has struggled to meet the needs of cities like Rapid City, South Dakota. Often, police are called to address situations that are related to mental health crises, homelessness, and substance use. In this episode: Rapid City's Chief of Police, Don Hedrick talks about what it means to police with public health in mind, the success of partnerships and outrea...

850 - The History of Birthright Citizenship in the U.S. 12.02.2025

About this episode: In 1868, the 14th Amendment established birthright citizenship in the United States. In this episode: a look at the court cases, historical events, and people that shaped one of the Constitution's human rights provisions. Guest: Martha Jones is a writer, historian and legal scholar, and a professor of history at the SNF Agora Institute. Host: Dr. Josh Sharfstein is vice dean fo...

849 - Marion Nestle and Food Politics 10.02.2025

About this episode: Research has linked America's food system with a host of health problems including obesity and heart disease. Advocate Marion Nestle, a food lover and food advocate, wants to change that. In this episode: how she got interested in the food system, the link between food marketing and diet, her excitement around GLP-1 drugs, and what she'll be watching if RFK Jr. is confirmed as...

848 - Vaccines 101: The Vaccines For Children Program 07.02.2025

About this episode: Today, in another episode in a series of podcasts exploring vaccine basics from the molecular level to global policy and everything in between: The Vaccines For Children Program is a CDC program that provides recommended vaccines without charge to about half of the nation's children. In this episode: the program's origins in a terrifying measles outbreak, how the program works,...

847 - Vaccines 101: The Vaccine Injury Compensation Program 06.02.2025

About this episode: Today, in another episode in a series of podcasts exploring vaccine basics from the molecular level to global policy and everything in between: how compensation for most vaccine-related injuries works in the U.S. Serious vaccine injuries are rare, but when they do happen, people can bring their claims to a special court. In today's episode, Judge Gary Golkiewicz, a "special mas...

846 - Vaccines 101: Vaccine Safety Science 05.02.2025

About this episode: Today, in the next episode in a series of podcasts exploring vaccine basics: the science of vaccine safety. In this episode, a look at what's unique about vaccine safety compared to the safety of other medical products, and how experts tell the difference between an adverse effect that is "causal" and one that is "coincidental." Guest: Dan Salmon is the director of the Johns Ho...

845 - Tuberculosis in the U.S. 04.02.2025

About this episode: A tuberculosis outbreak in Kansas City is one of the largest in recent history. Risk to the general public remains low, but the outbreak itself could be a signal of a seriously strained public health system. In today's episode: an overview of tuberculosis including how it spreads and who is most at risk, and what the Kansas City outbreak means for public health. Also: How the U...

844 - The Changing CDC Website 03.02.2025

About this episode: On Friday, January 31, a number of important datasets and pages housed on the Centers for Disease Control and Prevention website became inaccessible. In this episode: Dr. Nirav Shah, a member of the advisory committee to the director of the CDC and co-chair of the advisory committee's data and surveillance workgroup talks about the critical work of the CDC and the value of its...

843 - The Native Biodata Consortium: Data Sovereignty For Good 30.01.2025

About this episode: Since the mapping of the human genome in 2003, scientists have sought data from Indigenous and isolated populations. But often that research doesn't translate into better health care for the groups whose biological specimens informed it. In this episode: all about the Native Biodata Consortium, a research organization that collects, stores, and shares data from indigenous envir...

842 - Polio and the Polio Vaccine 29.01.2025

About this episode: Thanks to vaccines, most people under a certain age have no memory of the devastation and terror caused by the poliovirus. Although widely eliminated, polio still poses a threat in certain countries around the world. Waning vaccination rates in pockets of the U.S. mean some communities are at risk of a resurgence. In this episode: a look back at polio before vaccines, and how t...

841 - The U.S. & The World Health Organization 28.01.2025

About this episode: President Trump's executive order to withdraw the U.S. from the WHO could have lasting implications on the health and wellbeing of the world, and on the American people. In today's episode, the essential roles that the WHO plays both for the U.S. and around the globe, America's imperfect relationship with the institution, and the potential consequences of a U.S. exit. Guest: Dr...

840 - Vaccines 101: The Basics of Vaccines and Vaccination 27.01.2025

About this episode: The first of a series of podcasts about vaccine basics from the molecular level to global policy and everything in between. What actually are vaccines and how do they work? In this episode: back to basics on vaccines and immunology with Dr. Arturo Casadevall and Dr. Josh Sharfstein, including a discussion on why we still don't have a vaccine for HIV. Guest: Arturo Casadevall is...

839 - The First Week's Executive Orders 24.01.2025

About this episode: In the first few days of President Trump's second term he signed a blitz of executive actions. In today's episode: a look at some of the actions and memos that take aim at key public health policies including the communications pause for health and science agencies, a pause on NIH study sections, immediate posturing on DEI initiatives, exiting the Paris Agreement and WHO, and m...

838 - Book Club—Crisis Averted: The Hidden Science of Fighting Outbreaks 22.01.2025

About this episode: Throughout history, humans have been engaged in public health work. In a new book, epidemiologist Caitlin Rivers shares lessons from past outbreaks, what's changed since COVID-19, and how, at a difficult moment for public health, she's thinking about the future and keeping a watchful eye on mpox, H5N1, and more. Guest: Caitlin Rivers is an epidemiologist at the Johns Hopkins Ce...

837 - Seeking Common Ground in Public Health 20.01.2025

About this episode: As the administration in Washington DC changes, where will public health be able to work across partisan lines to improve the health of all Americans? A conversation with Brian Castrucci, President and CEO of the de Beaumont Foundation. Guest: Brian Castrucci is president and CEO of the de Beaumont Foundation , a philanthropy dedicated to supporting state and local public healt...

836 - The FDA Says Goodbye to Red Dye No. 3 17.01.2025

About this episode: The FDA's ban on the use of Red Dye No. 3 raises two questions — why is this color additive leaving the food supply? And what does this mean for other chemicals in the foods we eat?  In this episode: a discussion about how the FDA regulates food additives, and how that might change in the future. A note for listeners: By the end of this episode, you will understand why "GRAS re...

835 - Fluoride and The Law 15.01.2025

About this episode: Conversations about fluoride in the water supply are revving up but a key factor in the debate is the legal framework. In this episode: a discussion about the relevant law for assessing fluoride added to drinking water known as the Toxic Substances Control Act—a law limited to a focus on risk, not benefit—and what that means for emerging science and policy discussions around fl...

834 - Bird Flu Is Escalating 14.01.2025

About this episode: The U.S.'s first reported human death from bird flu is another sign that the virus is not going away anytime soon. In this episode: why it's time to double down on efforts to limit H5N1 transmission among cattle and birds, concerns about cats and other mammals, and how response measures need to scale up quickly and more broadly to try and prevent the virus from gaining a footho...

833 - Why Are Americans Dying So Much Earlier Than Some Of Their Counterparts? 13.01.2025

About this episode: A new report from the Bloomberg American Health Initiative finds that the U.S. lags behind many other high-income countries in life expectancy. In this report, researchers found that babies born 40 years ago in the U.S. and U.K could expect to live to the same age. Today, however, life expectancy is nearly three years shorter for those on our side of the Atlantic Ocean. In this...

832 - The Importance of Knowing and Optimizing Your Hearing Health…At ANY Age 08.01.2025

About this episode: Hearing declines for everyone as we get older, no matter what we do. As it declines, it can cause health problems like cognitive decline and brain atrophy, and is directly linked with Alzheimer's. But there are ways to understand and reduce these impacts including over-the-counter hearing aids and a new app where people can test their hearing on their smartphone. In this episod...

831 - Public Health Science Communication With Your Local Epidemiologist 06.01.2025

About this episode: Science communication is a vital skillset for public health practitioners. But what does it really take to cut through the noise? In today's episode, Katelyn Jetelina, the publisher of Your Local Epidemiologist, talks about the art and science of science communication, and why it's less about being right and more about a commitment to changing the way people think. Guest: Dr. K...

830 - Advancing Public Health in Uncertain Political Times 18.12.2024

About this episode: On December 3, the Bloomberg American Health Initiative held its annual summit. This year, the theme really marked the moment: Advancing Public Health in Uncertain Political Times. In today's episode, you'll hear three conversations from the Summit about how public health can provide a roadmap for making needed progress. First: how public health data and evidence provide contex...

829 - Do Mammograms Save Lives? 16.12.2024

About this episode: For decades, regular mammograms to detect breast cancer have been recommended for women ages 50-75. In 2024, the age range dropped to include women 40-49 as well. But what do we really know about mammography as a tool to save lives? Are all scans created equal? What is the risk/benefit analysis to upping the number of screenings a woman is recommended to receive in her lifetime...

828 - Public Health is a Human Right 11.12.2024

About this episode: The day after the 2024 presidential election, Joe Amon—the brand new director of the Johns Hopkins Center for Public Health and Human Rights—was set to give a speech for a panel about health discrimination. But the one he'd prepared wasn't going to cut it for a moment suddenly marked by uncertainty and change. He pivoted to a different message: one that acknowledges that public...

827 - The Rise in Pediatric Cases of Walking Pneumonia 09.12.2024

About this episode: Well into the respiratory illness season, there's been a rise in cases of walking pneumonia compared to recent years, particularly among children. In this episode: an overview of walking pneumonia; how it's tested, treated, and prevented; and what parents and caregivers should look out for in children. Guests: Dr. Anna Sick-Samuels is an associate professor of pediatric infecti...

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