This Podcast Will Kill You

Ep 110 Influenza, Take 2: Sitting Ducks; Fowl Play Over five years ago, on October 31, 2017, the very first episode of This Podcast Will Kill You premiered, an action-packed (and mildly disorganized) tour of the influenza virus and the 1918 flu pandemic. So much has happened since that episode’s release, both within the podcast and in the world of public health, not the least of which is a respira...

Somehow it’s taken us until the penultimate episode to cover this season’s first mosquito-borne virus. But we assure you, this episode is well-worth the wait. Although Chikungunya virus is often lumped in with dengue or Zika, the unique characteristics that distinguish Chikungunya virus from these other arboviruses are just as important to note as the similarities among them. In this episode, we e...

Although today we tend to think about diseases in terms of signs and symptoms, tests and treatments, that hasn’t always been the case. For much of history, diseases carried with them a deeper meaning beyond the pathophysiological processes leading to their development. A diagnosis was as much about the identity and personality of an individual as it was about the disease itself, and this was espec...

Over the years of the podcast, we have often struggled with questions of why: why pathogens act the way they do, why certain people get sick while others don’t, or why we know little about some diseases. This episode is no exception - sepsis certainly inspires many “whys”. But for perhaps the first time on the pod, we find ourselves grappling not only with “why?” but also with “what?”. What, indee...

Are you in the mood to chat chromosomes, specifically the X chromosome? If so, have we got the perfect episode for you! You may have come across the definition of Turner syndrome as a genetic condition resulting from the partial or complete loss of an X chromosome, but what does that actually mean? What is the X chromosome, what does it do, and why is it so important? We attempt to answer these qu...

We’ve covered measles, we’ve taken on rubella, and now we’re finishing up the classic MMR vaccine by exploring the other M: mumps. To some listeners, mumps may be a painful childhood memory while to others it’s just a letter in a vaccine they were too young to remember getting. But by the end of this episode, we promise that you’ll all be much more familiar with this strange little virus. How does...

Don your wetsuit, grab your oxygen tank, and securely fasten your mask, because this week we’re going on our deepest dive yet. In this episode, we’re plumbing the depths of decompression sickness, aka the bends, to get a better handle on how gases and pressure can be so very deadly. We start out with a bit of Gases 101, examining how decompression sickness occurs and why it affects your body in th...

The story of leptospirosis is chock full of variety. In terms of biology, any number of different Leptospira species and serovars can play a role in infection, and the resulting infection can run from asymptomatic to deadly. As for ecology, virtually any mammalian species can either act as an affected reservoir for the pathogens or fall victim to a deadly infection. The history of leptospirosis ta...

“The king of poisons,” “the poison of kings,” “inheritance powder.” As its various nicknames suggest, arsenic’s notoriety largely stems from its use as a murder weapon. But as we explore in this episode, the world of arsenic is much, much bigger than just as a plot device in an Agatha Christie novel, and it remains one of the most important environmental contaminants today. But how exactly does ar...

For what was originally going to be our 100th regular season episode, we wanted to turn the vaguely threatening title of our podcast on its head by exploring a topic that’s not about something that can kill you but rather the hows and whys of staying alive, forever. That’s right, this week we’re taking on the immense and amorphous concept of immortality, viewed primarily through the lens of biolog...

A little over two years into a pandemic, the last thing you probably want to see is headlines announcing yet another disease spreading across the globe. And yet, here we are. Beginning in May 2022, an increasing number of cases of monkeypox have been reported in many countries around the world, both in places where the monkeypox virus is known to occur as well as places where it had previously nev...

We’ve all been there: doubled over in pain as stomach cramps grip your guts; the panicked shuffle to the nearest bathroom; the waves of nausea and chills as you cry out loud, “oh no, what did I eat??”.  At the very least, food poisoning is a humbling experience, but at the worst, it can be absolutely deadly. In this episode, we take a deep dive into one group of pathogens commonly responsible for...

It’s been years since our first (and, until now, only) vitamin-centric episode on scurvy, and we’re thrilled to be dipping our toes back into these nutritious waters with this episode on folate. Have you ever wondered why folate is important or what the difference is between folate and folic acid? Or maybe you’re curious about this vitamin’s discovery and the impact that fortification programs hav...

Our snake venom episode last week took us down some fascinating roads, from the pathophysiological effects of these compounds to the snake detection hypothesis and from the development of antivenom to the incidence of snakebite around the world today. But how did we make it through that whole episode without discussing how and why these venoms evolved in the first place? It’s because we were savin...

How do you feel about snakes? Intrigued or terrified? In awe or creeped out? Of course, those aren’t the only options; the sight or thought of a snake can evoke many different emotions, but chances are indifference isn’t one of them. And is it any wonder? Some snakes can produce incredibly potent venoms that can seriously harm or even kill you, a characteristic that likely helped earn them their p...

Our tapeworm episode last week mentioned the remarkable finding of tapeworm eggs in a 270 million-year old shark coprolite , that is, fossilized feces. And this certainly wasn’t the first time coprolites have come up on the podcast; we’ve referenced them several times before, mostly when discussing early histories of parasitic worms. But there is so much more to the world of coprolites than just w...

We can probably all agree that the thought of a tapeworm hiding out in your gut is not a pleasant one. Nor is the image of tapeworm larvae forming cysts in your muscles, organs, and even your brain. So listening to an entire episode on these parasitic worms? We understand why that may seem like a bit much. But trust us, the world of these worms is too fascinating and important to be missed. In thi...

The classic tale of epidemiology almost always begins with public health hero John Snow traipsing all over London to track down the source of the 1854 cholera epidemic, ultimately identified as the Broad Street Pump. While Snow’s famous endeavor earned him the title “the father of field epidemiology”, it turns out, as it so often does, that the real story is more complicated. In this bonus episode...

[CW: Firsthand account includes description of the death of an infant. Skip approximately first 3 min to avoid.] What comes to mind when you hear the word tetanus? For many people, it’s probably the horrible thought of stepping on a rusty nail or the every-so-often Tdap booster you get at your doctor’s office. Thanks to the wide availability of this incredibly effective vaccine, not many of us hav...

Chlamydia trachomatis may have stolen the show in our last episode, but there are many other Chlamydiae that deserve some time under the spotlight. In this bonus episode, Dr. Martina Jelocnik ( @MartinaJelocnik ) and Dr. Sam Phillips ( @Sam_Phillips_83 ) from the University of the Sunshine Coast in Queensland, Australia, join us to chat about some of these other Chlamydia species and the effects t...

With this episode, you’re getting much more than you probably bargained for, thanks to the quirks of Chlamydia trachomatis . This small but mighty bacterium can cause a number of different conditions throughout your body, most notably in your eyes and your genital tract, and the resulting infections, if left untreated, can lead to substantial and permanent damage. In this episode, we focus on the...

[This episode is a re-release of Ep 27 Vaccines Part 2: Have you thanked your immune system lately?, originally published May 21, 2019] Were you stoked about the history and biology of vaccines we covered in part 1, but left with even more questions? Were you really hoping to hear us talk about anti-vaccine sentiment and address misconceptions about vaccines in detail? Did you want even more exper...

[This episode is a re-release of Ep 26 Vaccines Part 1: Let's hear it for Maurice, originally published May 14, 2019] The wait is finally over: this week we are very excited to bring you the episode we’ve been teasing for weeks: vaccines! This week and next (you don’t have to wait a full two weeks for the next episode!), we are presenting a two-part series on vaccines. In today’s episode, we dive...

While last week’s episode covered ample ground when it came to lightning strikes, there is so much more to the world of electricity left to explore. Fortunately, there’s a bonus episode for that! This week, we’re joined by a familiar voice,  Dr. Timothy Jorgensen , whose previous appearance on the podcast (see  Ep 53 Radiation: X-Ray Marks the Spot ) helped to lay out the basics of radiation. In t...

Lightning strikes have an aura of myth and legend around them, and their mystical reputation is inflated by stories that tell of people who, after having been hit by lightning, are suddenly able to speak a new language or play the piano expertly. However, such embellished stories often fail to distinguish truth from fiction and rarely acknowledge the devastating toll that getting struck by lightni...