In Infectious Dose, Heather McSharry, PhD, virologist-turned-science-writer, brings her blog to the airwaves to help bridge the dangerous gap between the science of infectious diseases and public misperception. On the podcast website, infectiousdose.com, all episodes have corresponding blog posts with the information contained in the episode along with links or PDFs for all sources used. To prevent unwelcome surprises, episodes with limited, mild profanity are marked as explicit.
*Podcast intro and outro music are adapted from Heather Nova’s song, I Miss My Sky. Used with permission.
All content for Infectious Dose is the property of Infectious Dose and is served directly from their servers
with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.
In Infectious Dose, Heather McSharry, PhD, virologist-turned-science-writer, brings her blog to the airwaves to help bridge the dangerous gap between the science of infectious diseases and public misperception. On the podcast website, infectiousdose.com, all episodes have corresponding blog posts with the information contained in the episode along with links or PDFs for all sources used. To prevent unwelcome surprises, episodes with limited, mild profanity are marked as explicit.
*Podcast intro and outro music are adapted from Heather Nova’s song, I Miss My Sky. Used with permission.
This week in “Seasonal, Not Safe,” we confront the truth about influenza in 2025–2026. It’s not “just the flu.” From the tragic stories of children lost to fast-moving infections, to the science of how influenza spreads, mutates, and turns deadly — this episode explores what’s really happening this season. We break down the rise of Subclade K, current global flu patterns, new U.S. vaccine policy controversies, and what makes the flu virus so evasive. Plus: how antiviral medications work, why vaccination rates are falling, and what’s coming next in the push for a universal flu vaccine.
All citations and updates available in companion blog post at infectiousdose.com
Infectious Dose
In Infectious Dose, Heather McSharry, PhD, virologist-turned-science-writer, brings her blog to the airwaves to help bridge the dangerous gap between the science of infectious diseases and public misperception. On the podcast website, infectiousdose.com, all episodes have corresponding blog posts with the information contained in the episode along with links or PDFs for all sources used. To prevent unwelcome surprises, episodes with limited, mild profanity are marked as explicit.
*Podcast intro and outro music are adapted from Heather Nova’s song, I Miss My Sky. Used with permission.
