Contagion: An Infectious Diseases Podcast

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IDPodcasts' infectious diseases audio podcast series breaks tradition from the speaker-audience video format that the long running platform has been producing for its worldwide audience since 2007. Epidemiologists and Infectious Diseases specialists Drs. Vivian Vega and Jackie Sherbuk and show producer Dr. Richard Oehler discuss important infectious diseases subjects around a central theme in an entertaining, engaging and interactive format meant for all audiences. Contagion also features contributions from the USF Division of Infectious Diseases many faculty and invited guests.

  1. vor 3 Std.

    Outbreak Summer: Vacation Souvenirs You Never Wanted

    This summer has been anything but quiet for infectious diseases. In this episode of Contagion Podcast, hosts Drs. Vivian Vega and Jackie Sherbuk take listeners on a fast-paced tour through the outbreaks, emerging threats, and public health stories that have dominated conversations among infectious disease specialists—and increasingly, the general public. The episode begins with the nationwide Cyclospora outbreak, examining why this foodborne parasite has become one of the summer's biggest public health stories. The hosts explain how contaminated produce, long incubation periods, and complex food distribution networks make outbreak investigations particularly challenging, while providing practical advice on diagnosis, treatment, and prevention. Next, they explore the remarkable Andes hantavirus outbreak linked to an expedition cruise in Patagonia. This unusual event highlights the only hantavirus known to spread from person to person and serves as a fascinating case study in how ecotourism, international travel, and delayed symptom onset can complicate outbreak investigations across multiple countries. The conversation then shifts to one of the most extraordinary success stories in public health: the battle against the New World screwworm. Listeners will discover how millions of sterile flies have been used to eradicate one of history's most destructive livestock pests—and why climate change, wildlife movement, and border challenges now threaten decades of success. The hosts also review the ongoing Legionnaires' disease outbreak in New York City, discussing how modern environmental surveillance, rapid public health response, and laboratory testing work together to control urban outbreaks before they expand further. Attention then turns to the rapidly expanding Ebola outbreak in the Democratic Republic of the Congo, where the rare Bundibugyo strain presents new challenges because currently available vaccines and therapies are not proven to work against it. The discussion highlights the importance of surveillance, contact tracing, community trust, and ongoing clinical trials in outbreak response. Finally, the episode examines how public health agencies prepared for infectious disease threats during the 2026 FIFA World Cup, from measles and respiratory viruses to wastewater surveillance, social media monitoring, and behind-the-scenes coordination that helps keep millions of travelers safe. Blending humor, clinical insight, and real-world epidemiology, this episode offers an engaging look at the infectious disease stories shaping the summer of 2026. Whether you're a healthcare professional, student, or simply curious about emerging health threats, you'll gain a deeper appreciation for the science, surveillance, and public health efforts that work quietly behind the scenes to protect us all. Dr. Vega would like to thank her friend Job Meiller for his musical contributions, "Hotel California," and "Hank," to our segment breaks. Thank you, Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her artwork utilized in our episode thumbnail, "The Mouse Who Never Meant to Harm."

    Outbreak Summer: Vacation Souvenirs You Never Wanted

  2. 21. Apr.

    The Trust Gap: Rebuilding Confidence in Vaccines

    In this episode of the Contagion Podcast, we take on one of the most pressing challenges in modern medicine: vaccine hesitancy. As misinformation spreads rapidly across social media and trust in institutions continues to shift, clinicians are increasingly navigating complex, emotionally charged conversations with patients and families. To explore this issue, we sit down with Dr. Lisa Hayes, a board-certified pediatrician, to better understand what vaccine hesitancy looks like today—from inside the exam room. From routine well-child visits to high-stakes discussions about safety and risk, Dr. Hayes shares her firsthand experience engaging with parents who are uncertain, skeptical, or simply overwhelmed by the volume of information coming at them from every direction. We begin by examining how we got here. Vaccine hesitancy is not new, but it has evolved dramatically over time. From early debates around smallpox vaccination to the lasting impact of the now-debunked MMR-autism claims, historical events have shaped public perception in lasting ways. Layer onto that the rise of digital media, where health information—and misinformation—spreads faster than ever, and the COVID-19 pandemic, which further strained trust and amplified division.   But this episode goes beyond history. We focus on the real-world dynamics of these conversations today. What are parents most concerned about? How do clinicians decide when to lead with data, when to lead with empathy, and how to balance both? And what happens when deeply held beliefs collide with public health recommendations? We also take an honest look at the broader context of mistrust in healthcare, particularly among communities that have experienced bias, dismissal, or inequity. Understanding this backdrop is essential to rebuilding meaningful connections with patients. Finally, we turn toward solutions. What strategies actually work? How can clinicians meet families where they are without compromising scientific integrity? And what does the future of vaccine communication look like in an era defined by information overload? This is a conversation about more than vaccines—it’s about trust, communication, and the evolving role of the clinician in a rapidly changing world. Dr. Vega would like to thank her friend Job Meiller for his musical contributions, "For what it's worth," and "Hey, soul sister," to our major segment breaks. Thank you, Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her artwork utilized in our episode thumbnail, "Motherhood in a darkened world."

    The Trust Gap: Rebuilding Confidence in Vaccines

  3. 16. Jan.

    2025 Under the Microscope: The Events that Shaped Public Health

    As 2026 begins, Contagion Podcast reflects on 2025, a year that tested global public health systems and reshaped how we think about infectious diseases, trust, and preparedness. In this special year in review episode, hosts Jackie Sherbuk and Vivian Vega examine the most consequential infectious disease and public health stories of the year—placing outbreaks, policy decisions, and scientific breakthroughs into clear clinical and societal context. The episode begins by confronting one of the defining challenges of 2025: erosion of public trust in public health institutions amid leadership upheaval, funding cuts, and widespread misinformation. Against this backdrop, long-controlled diseases returned with force. Measles resurged across the United States and Europe, threatening elimination status and exposing the consequences of falling vaccination coverage. Influenza surged early and intensely, straining hospitals and disproportionately impacting children and older adults. Other vaccine-preventable diseases—including pertussis and polio—reemerged, reminding listeners that immunity gaps anywhere can place everyone at risk. Beyond vaccines, the hosts explore global crises such as widespread cholera outbreaks driven by conflict, displacement, and climate-related flooding; ongoing tuberculosis transmission, including a major U.S. outbreak; and the expanding geographic reach of mosquito-borne diseases like dengue, chikungunya, and West Nile virus. They also discuss how viral hemorrhagic fever outbreaks, while limited in case numbers, continue to stress-test public health response systems worldwide. Importantly, the episode closes on hope. Breakthroughs such as twice-yearly lenacapavir for HIV prevention represent a paradigm shift in prevention and equity. Historic progress toward eliminating mother-to-child transmission of HIV, syphilis, and hepatitis B demonstrates what sustained investment and coordinated care can achieve. Above all, the hosts honor the resilience and dedication of healthcare and public-health professionals who continue to protect communities amid uncertainty. This episode offers a thoughtful, candid look at 2025—and a reminder that preparedness, communication, and trust remain our most powerful tools. Dr. Vega would like to thank her friend Job Meiller for his musical contributions, "One," and "Imagine," to our major segment breaks. Thank you, Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her artwork utilized in our episode thumbnails.

    2025 Under the Microscope: The Events that Shaped Public Health

  4. 05.11.2025

    Bioterrorism and Biowarfare: When Science Goes Rogue

    Our inaugural episode of Season 2 of The Contagion Podcast opens as show producer Dr. Richard Oehler and show co-host Dr. Vivian Vega reflect on how much has changed in the fields of infectious diseases and public health since our Season 1 finale was posted in June. Drs. Oehler and Vega share some very timely updates in their ID news segment--recounting changes at the CDC as well as several important epidemiological and research developments.  Next, Dr. Vega and our special guest, Infectious Diseases specialist and former military physician Dr. Patrick Danaher transition to a chilling yet timely exploration of bioterrorism and biological warfare, threats that no longer garner the attention they once did a couple of decades ago. The two recount bizarre early attempts — like firing rabid dog saliva or trading leprosy-tainted wine — that reveal how little was once understood about contagion. But the tone shifts as the conversation moves on to the 1984 Salmonella attack in The Dalles, Oregon, America’s first large-scale bioterrorism event. A cult known as the Rajneeshees deliberately contaminated restaurant salad bars to sway a local election, sickening more than 750 people. Through detailed epidemiologic analysis, the hosts explain how investigators connected the outbreak to the commune and why this case remains a critical public-health lesson in surveillance and preparedness.   From there, the discussion expands to bioweapons — cheap, concealable, and capable of mass panic. The doctors compare the costs of biological, chemical, and nuclear weapons, underscoring why pathogens are often called “the poor man’s nuclear bomb.” They walk through the CDC’s Category A threat list — including anthrax, smallpox, plague, and viral hemorrhagic fevers — and dissect what makes these microbes so devastating.   Listeners are then transported to the aftermath of 9/11, when anthrax-laden letters reignited national fears of invisible enemies. The podcast reconstructs the FBI investigation, profiles scientist Bruce Ivins, and explains how this attack reshaped U.S. biodefense policy, from Project BioShield to the Strategic National Stockpile.   The last segment turns to smallpox, humanity’s “crown jewel” of eradication turned nightmare scenario. Through insights from Soviet defector Ken Alibek and modern concerns about synthetic biology, the episode reveals why smallpox remains one of the most feared potential bioweapons — despite being officially eradicated in 1980.   Blending medical insight, historical storytelling, and wry humor, Contagion Pod’s Season 2 premiere reminds us that while pandemics capture headlines, the threat of bioterrorism never truly disappears. Dr Vega would like to thank her friend Job Meiller for his musical contribution to our segment breaks. Thank you Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her original painting, “Biohazard Dream,” used in our episode thumbnail.

    Bioterrorism and Biowarfare: When Science Goes Rogue

  5. 30.06.2025

    Contagion Horizon: Future Pandemic Threats

    In the Season one finale of our show, hosts Dr. Vivian Vega and Dr. Jackie Sherbuk reflect on the evolving landscape of infectious diseases and public health. Yet rather than linger on setbacks, they look ahead, posing the critical question: “What are the future pandemic threats?” To explore what transforms a simple pathogen into a global threat, they examine three key characteristics: transmission, virulence, and available countermeasures. Transmission, it turns out, must strike a delicate balance. A virus must spread efficiently—fast enough to infect large populations, but not so aggressively that it incapacitates or kills its host before passing to the next person. Similarly, a pathogen that is too virulent may burn out quickly, unable to spread widely before its hosts succumb. As for countermeasures, their availability and effectiveness vary. Influenza, for instance, can be treated with antivirals, while diseases like Nipah virus remain without effective therapies. At the time of this recording, H5N1 avian influenza stands out as a pressing concern. Dr. Vega reveals a startling fact: domestic cats may serve as an unexpected intermediary host, offering a new pathway for H5N1 to bridge the gap to humans. It’s a reminder of how creatively and unpredictably pathogens can bypass traditional barriers. Dr. Sherbuk turns to Ebola as a striking example of how sheer virulence can catapult a disease to global attention. Past outbreaks in Africa overwhelmed health systems, exploiting cultural practices like burial rituals to fuel its spread. Even the limited number of U.S. cases during the 2014 outbreak stirred widespread public fear, driven by the virus’s high mortality rate abroad. Not all dangerous pathogens are highly lethal. Some, like Zika virus, pose serious risks in specific populations—such as fetal abnormalities in pregnant women. Others, like HTLV-1, may cause chronic illnesses like leukemia and lymphoma. While many pathogens naturally evolve to become less lethal—thereby enhancing their chances of transmission—some mutate unpredictably, becoming more dangerous. This is the ongoing concern with influenza: a seemingly mild strain could shift into something far deadlier. The importance of countermeasures cannot be overstated. Yet in the aftermath of COVID-19, global readiness has been undermined by pandemic fatigue and the politicization of public health. Mistrust in vaccines, fractured health policy, and diminished international cooperation all threaten our capacity to respond to the next crisis. But what if the next pandemic comes from a direction we didn’t anticipate? Scientists have a name for this uncertainty: “Disease X.” The World Health Organization coined the term as a placeholder for the unknown. COVID-19 was once Disease X—until it had a name. The next one could emerge from zoonotic spillovers like HIV or Nipah, climate change, laboratory accidents, or even bioterrorism. Whatever its origin, our best defense lies in robust surveillance, scientific agility, and global collaboration. Because the question isn’t if Disease X will come—but whether we’ll be ready when it does. Dr Vega would like to thank her friend Job Meiller for his musical contribution to our segment breaks. Thank you Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her painting, "The Multivirus Pandemic Explosion," used in our episode thumbnail.

    Contagion Horizon: Future Pandemic Threats

  6. 02.04.2025

    Measles: The Comeback Nobody Wanted

    It felt inevitable. Years of declining childhood vaccination rates were bound to have consequences. In early 2025, those consequences became alarmingly real as a measles outbreak emerged in West Texas and Eastern New Mexico. Before the introduction of the measles vaccine in 1963, the U.S. Centers for Disease Control and Prevention (CDC) estimated that measles infected three to four million Americans annually, causing 48,000 hospitalizations and 400 to 500 deaths each year. The introduction of the MMR (measles, mumps, and rubella) vaccine marked a turning point. The two-dose regimen—first administered between 12 and 15 months of age, with a second dose between 4 and 6 years—was remarkably effective. By 2000, measles was declared eliminated in the United States. But in recent years, progress has unraveled. A dramatic drop in vaccination rates—fueled largely by the discredited claim linking the MMR vaccine to autism—has allowed this once-vanquished virus to resurge. Today, vaccination rates in many states have dipped below the 95% threshold needed for herd immunity, and the current outbreak offers a grim reminder of what’s at stake. In Gaines County, Texas, where vaccine exemptions are especially high among the local Mennonite population, hundreds of measles cases have been reported—resulting in at least two deaths in Texas and New Mexico. In this episode, hosts Dr. Vivian Vega and Dr. Jackie Sherbuk trace the recent history of measles in the U.S., focusing on the current outbreak in Texas and New Mexico. They tackle the question: Why is measles still so dangerous? The discussion includes common complications of the disease, current vaccination guidelines, and a thorough debunking of the alleged MMR-autism connection. They also highlight a growing concern: cases of vitamin A toxicity in children, stemming from widespread misconceptions about its role in measles treatment. Dr Vega would like to thank her friend Job Meiller for his musical contribution to our segment breaks. Thank you Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her painting, "SSPE-Subacute Sclerosing Panencephalitis," used in our episode thumbnail.

    Measles: The Comeback Nobody Wanted

  7. 29.01.2025

    Dr. Robert Gallo: Insights from a Lifetime in Science

    Virology vanguard Dr. Bob Gallo is far from ready to slow down. Now in his seventh decade as one of America's top scientists, he could easily sit back and enjoy the fruits of his numerous and pioneering achievements. His groundbreaking work began in the 1970s with research into human retroviruses, including the discovery of the T-cell growth factor (IL-2) and the identification of the Human T-Cell Lymphotropic Virus (HTLV-1) in 1980, earning him his first Lasker Award, often referred to as “America’s Nobel Prize.” His subsequent research led to the identification of HIV-1 as the cause of AIDS, securing him a second Lasker Award. In the 1980s, he was the world’s most cited scientist. Along with his team, he developed the first HIV blood test, crucial for understanding the spread of AIDS and managing HIV patients. In the mid 1990's Gallo and his collaborators discovered chemokines, naturally occurring compounds that were essential for understanding how HIV infects cells. Dr. Gallo later founded the Institute of Human Virology at the University of Maryland School of Medicine in 1996 and co-founded the Global Virus Network (GVN) in 2011 to enhance global virus detection and management. Recently, Dr. Gallo and his team moved to Tampa, the new global headquarters for GVN, where he now serves as director of the University of South Florida (USF) Virology Institute and Head of the Microbial Oncogenesis Program at the Cancer Institute at Tampa General Hospital (TGH).   In the first part of this wide-ranging interview, Dr. Gallo shares insights into his entry into virology and his initial research into the etiology of certain cancers. This work included crucial discoveries around T cell growth factors, paving the way for identifying HTLV-1. He discusses his collaboration with CDC epidemiologists, which led to recognizing AIDS as being caused by a retrovirus. Once the HIV virus was identified as the cause, creating the first blood test for HIV had profound impacts on the epidemic and patient care.   In the second segment, Dr. Gallo discusses the origins of the HIV virus and its early global spread. He also reflects on the COVID-19 pandemic, why the focus on its origins is irrelevant and reflects on how to rebuild public trust in science and medicine, which may have been damaged during the pandemic.   In the concluding segment, Dr. Gallo talks about his reasons for joining USF Health and TGH and the research areas he finds most promising going forward. He speculates on the prospects for an HIV vaccine, the impact of artificial intelligence on virology, and why he doesn’t necessarily worry about the threat of the next global pandemic. Finally, Dr. Gallo opens up about how the early loss of his young sister deeply affected his life and his desired legacy. Dr Vega would like to thank her friend Job Meiller, her YES Man, for the wonderful musical contributions and coming through on every idea she has. This time he contributes his renditions of Bruce Springsteen's "Streets of Philadelphia" and "Your Song," by Elton John. Thank you Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her painting, "HIV," used in our episode thumbnail.

    Dr. Robert Gallo: Insights from a Lifetime in Science

  8. 10.12.2024

    Climate and Contagion: A Deadly Duo

    Having just survived the calorie-fest of the Thanksgiving Holiday, show hosts Drs. Vivian Vega and Jackie Sherbuk reflect on the changing seasons--and that has them thinking NOT just about the weather, but about the climate. Here to discuss the impact of a changing climate on infectious diseases, they welcome Dr. Lauren Rybolt, Chief Infectious Diseases Fellow at the University of South Florida Morsani College of Medicine. Dr. Rybolt mentions that in the Tampa Bay Area, especially after the recent hurricane season, we are already seeing the effects of climate on infectious diseases occuring in real time. The direct effects of two rapidly intensifying hurricanes, Helene and Milton, that impacted Florida in late September and October have led to increased outbreaks of vibrio vulnificus and other waterborne infections, subjects which were highlighted in our very first episode. Dr. Rybolt explains that the effects of climate change are not singular, but are the results of many interconnected processes. For instance, how warming oceans affect precipitation patterns over the U.S., leading to flooding in some areas and drier conditions in others. Flooding can pollute streams and rivers and contaminate water supplies, while displacing people and increasing exposure to mosquito-borne disease; whereas drought can lead to water insecurity and the health consequences of extreme heat on vulnerable populations. Man made deforestation and land development can worsen the effects of flooding, and at the same time exacerbate climate change due to the loss of ecosystems and carbon-absorbing vegetation, for instance. Dr. Rybolt goes on to describe how the changing climate is producing an expanding zone of tropical infectious diseases in areas where they never occurred. More cases of Malaria and Dengue have been reported in Florida in recent years, for example. Tick-borne infections such as Lyme disease can expand to non-endemic regions due to climate change, but in Florida, we have been protected by a certain ubiquitous reptile. Certain fungal infections such as Candida auris have also spread beyond their typical "endemic areas" as well. Lastly, during their "ID News" segment, Vivian and Jackie discuss World AIDS Day, trends in vaccination and respiratory virus season, as well as the recent discovery of Bird Flu in raw milk. Thanks to Dr. Lauren Rybolt for appearing on this episode to share her knowledge about the infectious diseases impacts of climate change. Dr Vega would like to thank her friend Job Meiller, her YES Man, for the wonderful musical contributions and coming through on every idea she has. This time he is joined by his daughter, Isabelle Meiller, for a moving rendition of "Big Yellow Taxi." Thank you Job! Thanks also to Dr. Ana Velez, our artistic contributor, for her painting used in our episode thumbnail.

    Climate and Contagion: A Deadly Duo
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IDPodcasts' infectious diseases audio podcast series breaks tradition from the speaker-audience video format that the long running platform has been producing for its worldwide audience since 2007. Epidemiologists and Infectious Diseases specialists Drs. Vivian Vega and Jackie Sherbuk and show producer Dr. Richard Oehler discuss important infectious diseases subjects around a central theme in an entertaining, engaging and interactive format meant for all audiences. Contagion also features contributions from the USF Division of Infectious Diseases many faculty and invited guests.

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