Public Health On Call

About this episode: Travel can open our eyes to the world and make us better global citizens. But there's no denying the environmental impacts of travel. Plus, with climate change happening everywhere, it's becoming more difficult for tourists to predictably see and do some things without factoring in extreme weather. In this episode: how travelers can be more mindful and a look at how a travel co...

About this episode: The approval of pediatric COVID vaccines during the height of the pandemic brought reassurance to many parents and pediatricians who were caring for children with severe infections and, sometimes, Multi-system Inflammatory Syndrome in Children (MISC)—a rare but extremely dangerous condition that could impact even the healthiest kids after a COVID infection. But what's the pictu...

About this episode: A look inside the ongoing public health response to measles outbreaks in Lubbock, a city in West Texas. Guest: Katherine Wells is the director of Lubbock Public Health in West Texas. 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,...

About this episode: It's graduation time at the Bloomberg School! Doctoral candidate Jeff Marr joins the podcast to talk about how an economics major and an early internship at a health care system led to an interest in examining how health care markets and public policy work. Soon-to-be Dr. Marr discusses his dissertation looking at how predictive algorithms lead to decisions about care coverage....

About this episode: While cigarette use has radically declined in the U.S., many still die from smoking here and around the world. World No Tobacco Day—celebrated annually on May 31 since the 1980s—has helped expose tobacco industry tactics and highlight progress in global tobacco control. This year, a look at how manufacturers are increasing efforts to hook younger users on new products like e-ci...

About this episode: This week, President Trump signed an Executive Order aimed at lowering prescription drug costs. In this episode: a look at why the U.S. spends three to four times more for drugs than many peer countries, its current approach to drug pricing policy, the directives laid out in the Executive Order, and how other countries negotiate their prices. Note: These podcasts are a conversa...

About this episode: Diagnoses of autism are on the rise, but is this the result of more children being affected by the condition, or is more of a consequence of broader criteria and more screening? In this episode: a look at a new study about the number of children diagnosed with autism and what this research shows—and doesn't show. Guest: Dr. Christine Ladd-Acosta  is an autism researcher and vic...

About this episode: In 2003, George W. Bush's President's Emergency Plan for AIDS Relief (PEPFAR) was the largest commitment to a single disease in U.S. history. Renewed under every subsequent presidency since, PEPFAR has saved more than 25 million lives and prevented some 5 million perinatal infections globally. But now, policy changes that effectively end PEPFAR have the potential to completely...

About this episode: A look back at health policy in the first 100 days of Trump's second presidential administration including global health, vaccines, and the Department of Health and Human Services restructuring—plus a few things to keep an eye on for the future. Note: These podcasts are a conversation between the participants and do not represent the position of Johns Hopkins University. Guest:...

About this episode: In the early 2000s, babies in Baltimore were dying at an alarming rate. In this episode: a look at Baltimore's enormously successful health program to reduce infant mortality and close unacceptable disparities in infant death and how it has developed into a program that offers support and resources for individuals and families across the lifespan. Guests: Dr. Josh Sharfstein  i...

About this episode: The National Institute for Occupational Safety and Health (NIOSH) is an agency within the Department of Health and Human Services with a mission to protect the nation's workforce from occupational hazards and illnesses. Their work includes setting policy and best practices around safety standards for things like exposure to toxic chemicals, firearms in the workplace, and even p...

About this episode: Zyn nicotine pouches are suddenly everywhere. What are they and how can they impact health? In this episode: A look at the popular products, what they are and how they work, how they're marketed, and what we know—and don't yet know—about their long-term health impacts or whether they could be a tool to help people quit tobacco products. Guest: Meghan Moran is an associate profe...

About this episode: Dr. Scott Harris has worked as a leader in Alabama's public health department for eight years and recently became that national president of the Association of State and Territorial Health Officials. In this episode: A conversation with Dr. Harris about lessons learned from the pandemic and how the current moment is presenting new challenges with measles outbreaks and plenty of...

About this episode: May is Lyme and Tickborne Diseases Awareness Month. In this episode: Dr. Nicole Baumgarth talks all things ticks including how climate change is increasing their territory, the diseases they spread such as Lyme and Heartland virus, disease prevention, and the latest on vaccines and treatments. Guest: Dr. Nicole Baumgarth is the director of the Johns Hopkins Lyme and Tickborne D...

About this episode: Since 2021, countries have been drafting a treaty to help the world better prevent and respond to pandemics. On April 16, the WHO announced an agreement for the world's first pandemic treaty. In this episode: a look at what it took to get here, what provisions were included and excluded, and what it means that the U.S. was not at the table for negotiations and will not be a sig...

About this episode: World Malaria Day is April 25.  In this episode: guest host Thomas Locke takes us to Capitol Hill where we meet malaria champions, scientists, and leaders who gather in Washington, DC, as part of the 'United to Beat Malaria' campaign urging Congress to continue supporting global malaria efforts. Show links and related content: The Malaria Minute Podcast —The Johns Hopkins Malar...

About this episode: In honor of Earth Day, we bring you a special episode of Public Health On Call: an essay read by Sam Myers, director of the Johns Hopkins Institute for Planetary Health. In his essay, he explores the incredible human evolution and technological innovation that has brought us to a moment in time where our own ascendance is threatening our future well-being on this planet. It's t...

About this episode: News about HKU5, a new bat coronavirus with the ability to spread to humans, was met with concerns in the scientific community—mostly because of how the research was done. In this episode: Johns Hopkins virologist Andy Pekosz talks about the different levels of biosecurity in laboratories where scientists study some of the world's most dangerous viruses, how these standards var...

About this episode: Innocent Grant is a family planning advocate from Tanzania. In this episode: How Grant's experiences approaching mis- and disinformation about sexual and reproductive health at home are now helping him to frame this work as the U.S. threatens to cut a portion of its global funding of family planning. He also discusses the threats to major progress in outcomes like maternal mort...

About this episode: In the early months of the new administration, several thousand CDC employees were dismissed, were asked to leave, or resigned. In this episode: what we know about these personnel losses, a look at some critical programs that may no longer exist, and concerns about what this means for America's health. Guest: Dr. David Fleming served as Deputy Director for Science and Public He...

About this episode: Consumer products from auto makers to housing developers to streaming and food delivery services all have impacts on our health. In this episode: A look at the Building H Index, which calculates a health score for these products and services and makes recommendations to companies about how to make their products healthier. Note: Building H is a program of the nonprofit Public H...

About this episode: Last week, the Department of Health and Human Services abruptly fired around 10,000 employees, 3,500 of which were within the FDA alone—an organization of around 18,000 total employees as of January 2025. In this episode: A look at the work of the FDA and how it may be hampered by such significant cuts, and how patients may be among those most impacted. Guest: Dr. Robert Califf...

About this episode: The Department of Health and Human Services's abrupt termination of $11 billion in health funding to states has interrupted projects across the country. In this episode, a look at one state—Connecticut—where the state with federal approval had been using the funding to upgrade aging technology and respond to urgent threats like measles. Note: This conversation was recorded prio...

About this episode: People come to the emergency department seeking all kinds of urgent care. What if they could also get treatment for opioid addiction? In this episode: a look at how one rural hospital started prescribing buprenorphine to ER patients, and how scaling up treatment while reducing stigma at hospitals across the US is now helping thousands of patients every year. Guest: Arianna Camp...

About this episode: For 25 years, Gavi, the Vaccine Alliance has been a global effort to purchase and distribute lifesaving vaccines to the poorest of countries and help them build up their health systems. Now, it's the latest chop in a blitz of proposed federal funding cuts to global health. In this episode: an overview of Gavi's innovative model that buys vaccines for 50% of the world's children...