This Podcast Will Kill You

In last week’s episode, we explored the mysterious world of multiple sclerosis (MS) and the ongoing quest to determine what causes this autoimmune disease. While it’s likely that no one single factor leads to the development of MS, the Epstein-Barr virus (EBV) has long been suspected to play a role in this and many other autoimmune diseases and has also been shown to be involved in several cancers...

Like many autoimmune diseases, multiple sclerosis so clearly illustrates how detection and description of a disease only gets us so far when it comes to prevention, treatment, and cure. In the over 150 years since the first comprehensive description of multiple sclerosis, a great deal of progress has been made to understand the what and how of this disease, but many mysteries still abound, especia...

We ended our myxoma virus episode on a bit of a cliffhanger, briefly alluding to the emergence of another deadly rabbit virus on the global scene. In this follow-up bonus episode, we take a closer look at this recent arrival, rabbit hemorrhagic disease virus (RHDV), and what its rapid spread around the world has meant for both invasive European rabbits in Australia as well as native rabbit species...

Invasive rabbits so numerous they form a “gray blanket” across the land. A killer virus, intentionally released to keep the bunnies at bay. An ensuing evolutionary arms race with no end in sight. It sounds more like the premise of a bad sci fi movie rather than a textbook case of biocontrol. But truth, especially in this case, is stranger and even more fascinating than fiction. If this is the firs...

Our episode last week ended on a hopeful note, a rare occurrence for this podcast, and it was due in large part to the incredible decline in reported cases of human African trypanosomiasis (HAT) over the past decade. In this bonus episode, we explore one of the major reasons behind this drop in HAT: the new medication  fexinidazole , developed through a partnership between the  Drugs for Neglected...

Here on the podcast, we’re no strangers to multi-host parasites with complicated life cycles, intricate ecologies and dense human histories. But human African trypanosomiasis (HAT) might require the most unpacking yet. In this episode, we do a deep dive into the tsetse fly-transmitted HAT, whose other name, sleeping sickness, doesn’t quite capture just how deadly this parasitic infection can be. F...

Blood tests and liver function results can only tell us part of the story when it comes to the impact that hepatitis B has on people living with the virus. Far too often overlooked is how stigma and discrimination, which we only briefly touched upon in our last episode, contribute to the substantial global burden of disease. In this bonus episode,  Dr. Chari Cohen , Senior Vice President of the  H...

This week, we’re dipping a toe back into the vast waters of hepatitis viruses, this time with a focus on hepatitis B. The hepatitis B virus, though second to be named, was first to be discovered, and effective vaccines and treatments have been available for decades. Yet the global prevalence of this virus remains staggering, with nearly 300 million people chronically infected and 1.5 million new i...

Chances are you know someone with endometriosis, or perhaps you’re affected yourself. But despite its incredibly high prevalence, endo remains almost criminally understudied, undertreated, and underacknowledged. In this episode, we aim to shed light on many aspects of endometriosis, first by examining the “what” and “how” of this disease: what’s actually going on inside your body with endometriosi...

In this week’s episode, we cover a bacterium whose recent emergence and rapid spread has been largely an epidemic of our own making.  Clostridium difficile  isn’t your typical pathogen - in many cases it’s not even considered a pathogen, just a normal member of our gut microbiota. But when something disrupts our gut microbiota, like antibiotics,  C. difficile  is given the freedom to spread its wi...

We’re back with our first episode of Season 5, and we’re starting off with a bang! Epidemic typhus, that friend of war and famine, may have caused more wartime deaths than all battles combined, and though it may seem like a disease relegated to the past, typhus only needs a minor disruption to turn it into a scourge of the present. In this epic season opener, we turn our sights to the louse-transm...

To say that alcohol is a part of human culture is a bit of an understatement. The relationship our species has with alcohol can be traced so far back that we see evidence of it in our DNA, in the way that humans, somewhat unique among mammals, gained the ability to more efficiently metabolize dietary ethanol. But while many of us have personal experience with the effects (and unpleasant aftereffec...

It’s the summer of 1999 in New York City, and everyone's looking towards the future, towards millennium parties and potential Y2K catastrophes. But if they turned their eyes to the streets around and skies above, they might have seen something else on the horizon, something much more real and alarming than a Y2K glitch: the arrival of West Nile virus. In this episode, we take a close look at the v...

Almost everyone is familiar with diabetes mellitus in some way. Whether we know family or friends that have been diagnosed with the condition or we’re directly impacted ourselves, diabetes mellitus has become a household name. And this is perhaps not surprising given its extremely high prevalence - nearly 9% of adults around the globe are estimated to live with the disease. But although we may kno...

Twenty years ago this month, letters containing  Bacillus anthracis  spores were mailed to various politicians and news media offices in the US, resulting in illness, death, and a widespread fear that transformed anthrax from an agricultural disease or occupational hazard into a potential weapon of bioterrorism. In this episode, we explore the many dimensions of anthrax, from the different ways  B...

A nighttime “kiss” from a bug that casts a curse on its recipient in the form of a lifelong, and possibly fatal, illness. No, this isn’t some half-remembered fairy tale. It’s the true story of Chagas disease, caused by the parasite  Trypanosoma cruzi  and transmitted by many species of triatomines (aka kissing bugs). In this episode, we take you through the utterly complicated biology of Chagas di...

While many of us know how deadly dysentery can be from playing countless hours of The Oregon Trail, there’s only so much that the classic game covered regarding this multifaceted disease. For instance, did you know that it can be caused by multiple pathogenic microbes? Or that it is and always has been closely associated with warfare and armies? Or that it remains one of the leading causes of deat...

Bumps and bruises. Cuts and scrapes. Gashes and gouges. Injuries small and large are familiar to all of us, but what happens when part of our body’s innate healing ability is disrupted? What happens, for instance, when the blood just won’t stop flowing? In this episode, we explore one of the most common of these disruptions: the clotting disorder known as hemophilia. From the physiological nitty g...

“Let’s do  Bartonella  next,” we said. “It’ll be straightforward and fun,” we promised ourselves. Turns out we were half right. In this fun but not quite straightforward episode, we tackle not one, not two, but three different species of Bartonella bacteria that can cause disease in humans:  Bartonella bacilliformis  (Carrión’s disease),  B. quintana  (trench fever),  B. henselae  (cat scratch dis...

Celebration wasn’t the only thing in the air in Philadelphia in July of 1976. Over the course of several days during the 58th Annual Convention of the American Legion, a killer mist spewed out of the air conditioning units throughout the building and into the sidewalks nearby. The result was a large outbreak of unexplained febrile pneumonia, often fatal, that would acquire the name Legionnaires’ D...

Ah, chickenpox, that pesky old childhood illness. And that’s all it is, right? Just a mild, routine infection that we all used to catch until the vaccine came around? Not quite. In this episode, we learn that, when it comes to the varicella-zoster virus, not everything is as it seems. We explore the complex nature of this virus, how it can make you kinda sick and then how it can make you really, r...

When you think of mercury, what springs to mind? Is it the entrancing drop of shimmery liquid that flows from a broken thermometer, giving the metal the name quicksilver? Or is it the warnings of overconsumption of fish and bioaccumulation? Or perhaps it’s the Mad Hatter from Alice in Wonderland? The story of mercury, in both its biology as well as its history, is vast and varied, and in this epis...

Over the past year and a half, we have learned so much about this virus, but there is still more to know. There always will be. We have seen the widespread impacts that the pandemic has had on all facets of society, but there is still more to see. There always will be. The COVID-19 pandemic is not over, and its effects will continue to be felt for years to come. What can we expect in a post-pandem...

Every summer, when the warm weather rolls around and the local ponds and lakes heat up enough for a tempting dip, remember that there may be something else lurking in those waters besides the people looking to cool off.  Naegleria fowleri , the topic of today’s episode, makes its home in warm, fresh waters, and that’s mostly where it stays, until a chance encounter between human and amoeba introdu...

From virology to vaccines, from education to economics, and from disparities to disease, our Anatomy of a Pandemic series has covered many different aspects of the COVID-19 pandemic. With such a broad range of topics and an often birds-eye view of the situation, it can be easy to forget that this is a large-scale event happening to individual people. The impacts of the COVID-19 pandemic are widesp...