This Week in Parasitism

TWiP is a monthly netcast about eukaryotic parasites. Vincent Racaniello and Dickson Despommier, science Professors from Columbia University, deconstruct parasites, how they cause illness, and how you can prevent infections.


episode 167: The constipated mathematician

The Tremendous Trio solve the case of the Woman With Foul Steatorrhea, and reveal breakdown of the glycocalyx associated with severe and fatal malaria.

Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin

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Links for this episode:
  • Glycocalyx and severe malaria (Clin Inf Dis)
  • Hero: Bridget Ogilvie
  • Letters read on TWiP 167
Case Study for TWiP 167

Woman 30 yo, traveled to DR, went to tourist part. On return for yearly physical, asked about her chronic constipation. She said does not have it any more, has normal bowel habits. A few weeks after her return this occurred. Primary care doc was intrigued, sent off some tests. Found Entamoeba hartmanni. What might the doc have done? What were the consequences of infection?

Send your case diagnosis, questions and comments to

Music by Ronald Jenkees


 2019-02-27  1h31m