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.
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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.
Episode 39: Cold Comfort - What Winter Rituals Got Right About Microbes
Infectious Dose
19 minutes
1 month ago
Episode 39: Cold Comfort - What Winter Rituals Got Right About Microbes
There’s more to your favorite winter rituals than nostalgia.
In this episode, we dive into how centuries of winter traditions—across Europe, Asia, Africa, and the Americas—offered accidental protection against infectious diseases. From citrus in stockings to cloves in mulled wine, from kimchi to candlelight, we trace how ancient practices around food, air, warmth, and cleaning helped communities stay healthier in the harshest season.
Learn how:
Spices like cinnamon, ginger, and clove helped preserve food and reduce pathogens
Fires, feasts, and fermentation doubled as primitive infection control
Cleaning rituals and seasonal isolation slowed the spread of disease
Modern public health can still draw lessons from these old traditions
We also address how today’s world—sealed homes, global travel, and misinformation—has changed the game, and why clear science is more important than ever.
🎙️ Plus: a discussion of the recent HHS decision under Robert F. Kennedy Jr. to remove the statement “vaccines do not cause autism” from federal pages—and why this political move contradicts decades of scientific evidence.
See the corresponding blog post at infectiousdose.com for all citations.
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.