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Murine typhus is a flea-borne infection often missed due to nonspecific symptoms and subtle presentation. This episode explores its transmission, urban ecology, and why infections that don’t fit expectations are frequently overlooked.

Issue #1 When Systems Adapt On flexibility, vectors, and persistence Welcome to the first issue of Field Notes. Each week, I take one idea from the episode—something that feels like a hinge point—and follow it where it leads. Not to repeat the science, but to see what it reveals. In the Margins What makes murine typhus unusual isn’t the pathogen—it’s the flexibility of the system. The transmission cycle used to be a closed loop of rats, fleas, and humans. Now the system inclu

A one-year anniversary episode of Infectious Dose exploring how science communication, misinformation, trust, and storytelling shape how we understand infectious disease.

Step inside a BSL-4 lab in this immersive podcast episode. Experience high-containment science, biosafety systems, and what it really feels like inside the suit.

Plague doctors weren’t just eerie figures in beaked masks—they were part of early epidemic response systems. This episode explores their real history, the science behind their methods, and why their image still fascinates us today.

A systems-level guided tour of the Vaccine Safety Series. Explore how vaccines are tested, monitored, and misunderstood—and how institutional failures can shape public trust in science.

Interview with biomedical researcher Mark Ungrin on how misinformation can originate inside scientific institutions and shape public health policy.

Mpox explained: symptoms, transmission, viral evolution, clade Ib, vaccines, global health inequity, and why scientists are watching the virus closely.

From zombie ants to Toxoplasma gondii, this Outbreak After Dark episode explores parasites that manipulate love, fear, and mating—and what that means for humans.

Nipah virus is deadly but rarely spreads far. Learn why R₀ stays low, what would trigger a pandemic shift, and why spillover recurs in Kerala.

Explore the resurgence of syphilis, its public health impact, treatment challenges, and the legacy of mistrust from Tuskegee to today.

RSV explained: symptoms, red flags, treatment, and prevention. What parents and caregivers need to know about this common respiratory virus.

Spiders, venom, and fear—this Outbreak After Dark episode separates real science from myths about spider bites and outbreaks.

A biodefense expert explains what biological weapons really are, why most pathogens aren’t weapons, and how misinformation increases real biological risk.

A conversation with astronaut and Texas congressional candidate Terry Virts on science-based leadership, public health, vaccines, and why evidence matters in policy decisions.

Explore why influenza 2025–2026 is severe, how policy shifts affect vaccines, and what’s next in flu prevention. Flu isn’t just seasonal — it’s dangerous.

A reflective New Year’s episode of Infectious Dose about resetting without resolutions, staying curious in hard times, and finding calm at the start of a new year.

Summary A Consumption Christmas Carol retells Dickens’ ghost story through the real epidemic that haunted Victorian London: tuberculosis. In this holiday edition of Outbreak After Dark, we move through past, present, and future to explore how TB was misunderstood, romanticized, and weaponized by inequality—before it was finally revealed as an airborne bacterial disease that still kills more than a million people each year. This episode blends gothic storytelling with real inf

Last updated: December 13, 2025 This page lists the scientific sources and key evidence behind the Hepatitis B recombinant protein subunit vaccine facts label, which is part of the Infectious Dose VACTS™ series — a collection of evidence-based vaccine fact labels designed to provide clear, source-linked summaries of vaccine safety, effectiveness, and monitoring. Every claim on the label is backed by peer-reviewed research, systematic reviews, or official recommendations from

Learn how the hepatitis B vaccine prevents cancer, why the birth dose matters, and what a policy failure at ACIP reveals about trust in public health.