The planetary health crisis can't be ignored in hospitals where patients are sick from climate-driven things like asthma from air quality emergencies, COVID-19 from a zoonotic spillover event, and cardiovascular complications from heat waves. Chris Lemon, an ER doctor and Bloomberg Health Initiative fellow who focuses on the intersection of climate change and health, talks with Stephanie Desmon about his work bringing planetary health dialogue to hospital staff while also looking at ways health systems can lower their massive carbon footprints.

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From mushrooms to microscopic organisms, fungi represent a serious—and still relatively unexplored—threat to human health. Dr. Arturo Casadevall returns to the podcast to talk about his new book, What If Fungi Win? which looks at why certain fungal infections take off, why they're so hard to treat, and why we will most certainly see more of them with climate change and treatment-resistant strains. Learn more. Get the transcript for this episode (PDF)

Johnson v. Grants Pass, a case before the U.S. Supreme Court, raises the question of whether homelessness can be criminalized. Ashley Meehan, a doctoral student at Johns Hopkins, talks with Dr. Josh Sharfstein about the public health dimensions of this issue. They discuss her research looking into what happens to people after encampment sweeps and what policies would benefit not only people experiencing homelessness but their communities and cities as well. Listen to our previous episode on this issue.

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Dengue, or "break-bone fever"—a disease transmitted by mosquitoes that can cause serious fever, rash, muscle and joint pain and even problems with bleeding and shock—is surging around the world and popping up in new places like the U.S. Vaccine expert Anna Durbin returns to the podcast to talk with Stephanie Desmon about these trends and the general status of vaccines, treatments, and prevention. Learn more. Get the transcript for this episode (PDF)

More than a decade after electronic cigarettes became broadly available in the United States, their merits are still being debated. Do these products help people quit smoking? How serious are the health risks associated with these products? In a two-part series, we hear from two researchers in tobacco control about their views. In part two, Stan Glantz, the Truth Initiative Distinguished Professor of Tobacco Control at the University of California San Francisco talks with Dr. Josh Sharfstein about his research into the harms of electronic cigarettes and the dangers of "dual use" of electronic cigarettes and traditional cigarettes. In an epilogue, Public Health On Call audio producer Matt Martin talks with Lindsay Smith Rogers about his personal history of tobacco use – including his efforts to quit with electronic cigarettes.

Read Glantz's paper in New England Journal of Medicine Evidence.

Listen to part one of the series. Get the transcript for this episode (PDF)

Virologist Dr. Andy Pekosz and public health veterinary expert Dr. Meghan Davis return to the podcast to talk with Stephanie Desmon about what we've learned so far from viral sequencing of H5N1, its presence in milk, what we know about infections in humans, the status of the overall response to a major pathogen of concern on the heels of COVID-19, and more. Read Dr. Davis's recent New York Times essay on protecting the dairy workforce.

Download the transcript of this episode (PDF)

More than a decade after electronic cigarettes became broadly available in the United States, their merits are still being debated. Do these products help people quit smoking? How serious are the health risks associated with these products? In a two-part series, we hear from two researchers in tobacco control about their views. In part one, Dr. Nancy Rigotti, Professor of Medicine at Harvard Medical School talks with Dr. Josh Sharfstein about the use of e-cigarettes for smoking cessation.

Read her editorial in the New England Journal of Medicine: https://www.nejm.org/doi/full/10.1056/NEJMe2314977

An alarming and dangerous syphilis surge across the Great Plains Region, an area spanning North Dakota, South Dakota, Nebraska, and Iowa, has prompted tribal officials to urge HHS Secretary to declare a public health emergency. Dr. Meghan Curry O'Connell, chief public health officer at the Great Plains Tribal Leaders Health Board and a member of the Cherokee Nation, talks with Lindsay Smith Rogers about the outbreak and why public health officials are struggling to respond.

Learn more: Tribal Leaders Urge HHS Secretary to Declare Syphilis Emergency

How a fight over data made South Dakota's bad syphilis outbreak worse

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In part two of a two-part series about the crisis of health care for immigrants and refugees at the U.S.-Mexico border, Dr. Alexander Tenorio, a neurosurgical resident at the University of California, San Diego, talks with Dr. Josh Sharfstein about the influx of traumatic brain and spinal injuries his team has seen from people attempting to climb the border wall. They discuss the scope of the problem and the policies behind it, and why it often takes hours for victims to get critical care. They also talk about Dr. Tenorio's personal connection to the situation as a first-generation American born to Mexican immigrants. Download the transcript for this episode.

In part one of a two-part series about the crisis of health care for immigrants and refugees at the U.S.-Mexico border, Dr. Janine Young, a pediatrician at the University of California, San Diego, talks with Stephanie Desmon about the tenuous situation for children and families. More and more people are showing up at the border in poor health—dehydrated, malnourished, some severely injured and many traumatized—without any adequate care to meet them. They talk about the immigration policies that have led to a system ill-equipped to properly triage and treat the children and families seeking refuge in the U.S., and the misconceptions around people who are fleeing for their lives.