

Public Health On Call
The Johns Hopkins Bloomberg School of Public Health
Evidence and experts to help you understand today’s public health news—and what it means for tomorrow.
Episodes
Mentioned books

Sep 11, 2025 • 15min
945 - Keeping Cool in One of America’s Hottest Cities
About this episode: Through the summer, the city of Phoenix consistently hits temperatures upwards of 110 degrees, creating dire conditions for vulnerable populations like outdoor workers and those with substance use disorders. In this episode: Phoenix Mayor Kate Gallego and City Councilwoman Kesha Hodge Washington detail the city’s extreme heat challenges, how other communities can deal with rising temperatures, and the successful cooling interventions championed by local leaders in the Valley of the Sun. Guest: Kate Gallego is the 62nd mayor of Phoenix, AZ. During her time in office, she has focused on diversifying the city’s economy, investing in infrastructure, and forwarding sustainability. Kesha Hodge Washington is the District 8 city councilmember for the city of Phoenix. She serves on the Audit Committee, the Economic Development and Housing and Transportation Infrastructure and Planning Subcommittees. Host: Stephanie Desmon, MA, is a former journalist, author, and the director of public relations and communications for the Johns Hopkins Center for Communication Programs. Show links and related content: How Climate Change and Extreme Weather Can Hurt Your Health—U.S. News & World Report Drop in Heat-Related Deaths Show Importance of Heat Relief Sites Efforts—City of Phoenix Extreme Heat Hazards—Hopkins Bloomberg Public Health Magazine 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.

Sep 10, 2025 • 16min
944 - How Credit Scores Impact Your Health
About this episode: Credit scores are more than just a number—they can determine your ability to access critical financial assets like loans, leases, and jobs that, in turn, have a huge impact on your health. In this episode: Professor Catherine Ettman shares new research that explores the relationship between low credit scores and mental health, and discusses a recent ruling reinstating medical debt as a metric of creditworthiness. Guest: Catherine K. Ettman, PhD, is an assistant professor in Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health, where she studies population mental health. Host: Stephanie Desmon, MA, is a former journalist, author, and the director of public relations and communications for the Johns Hopkins Center for Communication Programs. Show links and related content: Americans' medical debt can stay in credit reports, judge rules. What does that mean?—NPR Area-level credit scores and symptoms of depression and anxiety in adults—American Journal of Epidemiology An Asset Framework to Guide Nonhealth Policy for Population Health—JAMA Health Forum 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.

Sep 8, 2025 • 14min
943 - Who Can Get a COVID Vaccine This Fall?
About this episode: The FDA and CDC are tightening eligibility requirements for COVID-19 vaccines this year, pushing effective treatments out of reach for millions of Americans including young children. In this episode: Dr. Fiona Havers, formerly a senior adviser on vaccine policy at the CDC, draws on recent hospitalization rates to identify who is most at risk for severe COVID-19 infection and in need of immunization for protection. Guest: Dr. Fiona Havers, MHS, is an infectious disease physician, a medical epidemiologist, and an expert on vaccine-preventable respiratory diseases and vaccine policy. She previously led the Respiratory Virus Hospitalization Surveillance Network Team at the CDC’s National Center for Immunization and Respiratory Diseases. Host: Dr. Josh Sharfstein is distinguished professor of the practice in Health Policy and Management, a pediatrician, and former secretary of Maryland’s Health Department. Show links and related content: Recent FDA, CDC changes to COVID vaccination guidelines lead to confusion—WBAL Covid-19 vaccine license change: 12 key questions answered—Your Local Epidemiologist Despite federal shift, state health officials encourage COVID vaccines for pregnant women—Stateline 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.

Sep 4, 2025 • 18min
942 - Could One Health Prevent the Next Pandemic?
About this episode: Animal-to-human transmission of bacteria and viruses have triggered outbreaks of diseases like avian influenza, COVID-19, and Ebola. A public health approach called One Health can help us to better understand these cases—and possibly help prevent future pandemics. In this episode: Professors Emily Gurley and Raina Plowright explain how One Health investigations work, why they’re an effective tool for addressing spillover events, and a new One Health Coursera course that you can preview for free: https://www.coursera.org/learn/one-health-investigations-of-outbreaks-and-spillover-events Guest: Emily S. Gurley, PhD, MPH, is a professor in Epidemiology at the Johns Hopkins Bloomberg School of Public Health, where she focuses on infectious disease and outbreak investigation. Raina K. Plowright, PhD, MS, is a veterinarian and the Rudolf J. and Katharine L. Steffen Professor of Veterinary Medicine at Cornell University. Host: Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast, an editor for Expert Insights, and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health. Show links and related content: A Roadmap of Primary Pandemic Prevention Through Spillover Investigation—Emerging Infectious Diseases Healthy Ecosystems, Healthy Humans—Hopkins Bloomberg Public Health Magazine What's the Difference? The Meaning of One Health—Global Health Now Can Spillover—How Viruses Move From Animals to Humans—Be Prevented?—Public Health On Call (November 2021) 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.

Sep 3, 2025 • 17min
941 - Back to School: How Vermont is Addressing Chronic Absence
About this episode: Post-pandemic rates of absenteeism continue to climb across the country as many students navigate concerns that include anxiety and food insecurity. One state is fostering new partnerships and using a public health approach to directly address hurdles to school attendance. In this episode: Pediatricians Deanna Haag and Heidi Schumacher detail their work alongside educators, policymakers, and other medical professionals to advance health and educational equity across rural Vermont. Guest: Dr. Deanna Haag is a clinical assistant professor of pediatrics at the University of Vermont and a pediatrician at Monarch Maples Pediatrics in Enosburg Falls, VT. Dr. Heidi Schumacher is a general pediatrician and an assistant professor of pediatrics at the University of Vermont. She serves as faculty for the Vermont Child Health Improvement Program, a statewide initiative focused on improving children’s health outcomes. Host: Dr. Josh Sharfstein is distinguished professor of the practice in Health Policy and Management, a pediatrician, and former secretary of Maryland’s Health Department. Show links and related content: Every Day Counts: Reducing Absenteeism in Vermont’s School—University of Vermont Leahy Institute for Rural Partnerships All in for Attendance: Education and Public Health Leaders Release Framework to Address Chronic Absence from Schools—Johns Hopkins Bloomberg School of Public Health Chronic Absenteeism Is a Vital Sign for Kids’ Health. New Framework Seeks a Cure—The 74 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.

Sep 2, 2025 • 8min
940 - A Brief Update: CDC in Crisis
About this episode: Last week the CDC was rocked by the abrupt removal of director Susan Monarez and the resignation of four other senior officials, following months of budget and personnel cuts. In this episode: a quick update from former CDC Director Tom Frieden about these concerning developments, how they might impact vaccine access this fall, and what they mean for public health writ large. Guest: Dr. Tom Frieden is a physician and the president and CEO of Resolve to Save Lives, a global health mission focused on stopping preventable deaths. He previously served as the director of the CDC and commissioner of the New York City Health Department. Host: Dr. Josh Sharfstein is distinguished professor of the practice in Health Policy and Management, a pediatrician, and former secretary of Maryland’s Health Department. Show links and related content: We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health—New York Times CDC denies help for lead poisoning in Milwaukee schools due to layoffs—CBS News Personnel Cuts at the CDC—Public Health On Call (April 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.

Aug 28, 2025 • 28min
939 - Unfiltered Conversations to Restore Trust in Public Health
About this episode: Back-to-back crises of the opioid epidemic and COVID-19 have pummeled American communities, eroding trust in public health. But what if restoring that trust could start with a simple conversation? In this episode: Maggie Bartlett shares how she’s using her platform as co-host of the podcast, “Why Should I Trust You?”, to forge human connections with those who feel left out of public health conversations and to debunk misinformation about measles, vaccines, and corporate influence. Watch the video episode on YouTube: https://youtu.be/zCx9YY9EBWk Guest: Maggie L. Bartlett, PhD, is an assistant research professor in Molecular Microbiology and Immunology at the Johns Hopkins Bloomberg School of Public Health and the co-host of “Why Should I Trust You?”. Host: Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast, an editor for Expert Insights, and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health. Show links and related content: Inside A Rare Conversation Between MAHA Grassroots and Public Health Leaders—Why Should I Trust You? What I’m Learning from MAHA—Your Local Epidemiologist Why Should I Trust You?—www.whyshoulditrustyou.net 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.

Aug 27, 2025 • 20min
938 - Book Club—There Is No Place for Us: Working and Homeless in America
About this episode: Official measures of homeless Americans omit the millions of individuals and families that make up the “working homeless”—a segment of the population that, despite working full time, cannot secure stable housing. In this episode: Journalist Brian Goldstone pulls back the curtain on America’s worsening homelessness crisis and interrogates the fractured relationship between employment and financial stability. Guest: Brian Goldstone, PhD, is a journalist and the author of There Is No Place for Us: Working and Homeless in America. His work has appeared in The New York Times, Harper’s, The New Republic, Guernica, and Jacobin. Host: Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast, an editor for Expert Insights, and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health. Show links and related content: There Is No Place for Us—Penguin Random House The invisible homeless crisis that official statistics miss—Vox The New American Homeless—The New Republic 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.

Aug 25, 2025 • 14min
937 - Meet the Future of Public Health
About this episode: Since the fifth grade, high schooler Nayesha Diwan has been fascinated by the world of public health. Throughout her childhood and teenage years, she has immersed herself in research and advocacy, delivering speeches at her state’s capitol and interning at an elite neurophysiology lab. In this episode: Nayesha explains how her mother’s cancer diagnosis drew her to public health and reminds us how complex and impactful the field can be. Guest: Nayesha Diwan is a rising high school junior with a passion for science, health care, and public health. She is a semifinalist for the USA Biology Olympiad exam and is currently researching the blood brain barrier and neurological disorders. Nayesha is the host of the Global Health Frontlines podcast. Host: Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast, an editor for Expert Insights, and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health. Show links and related content: Global Health Frontlines—Spotify Influence the Choice—www.influencethechoice.org 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.

Aug 21, 2025 • 12min
936 - The New Reality Facing Medicare, Medicaid, and the ACA
About this episode: The reconciliation bill passed by Congress in July is set to unravel key aspects of the Affordable Care Act that have expanded health coverage to millions of Americans. In this episode: One of the architects of the ACA, Liz Fowler, outlines how work requirements, truncated enrollment periods, and higher premiums will change health care for Americans on Medicaid and Medicare and for those buying coverage through their state’s marketplace. Guest: Elizabeth Fowler, PhD, JD, is a distinguished scholar in Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health and previously served as the director of the Innovation Center at the Centers for Medicare & Medicaid Services. Host: Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast, an editor for Expert Insights, and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health. Show links and related content: How New Federal Legislation Will Affect Health Care Costs and Access for Americans—Johns Hopkins Bloomberg School of Public Health When Do the One Big Beautiful Bill Act’s Health Care Provisions Go Into Effect?—Center for American Progress Health Provisions in the 2025 Federal Budget Reconciliation Law—KFF 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.