This Week in Parasitism
TWiP is a podcast about the tiny creatures that live in and on us.

Hosts: Vincent RacanielloDickson Despommier, and Daniel Griffin

Guest: Jason Zucker

The TWiP ternion solve the case of the Man from Mexico, and discuss a transgenic toxoplasma vaccine for chickens using Eimeria tenella.

Links for this episode:

  • Transgenic Eimeria as a toxoplasma vaccine (Sci Rep)
  • Image shows cysticercus of T. solium in brain (Parasitic Diseases, 5th Ed)
  • Letters read on TWiP 113

This episode is sponsored by CuriosityStreama subscription streaming service that offers over 1,400 documentaries and non­fiction series from the world's best filmmakers. Get unlimited access starting at just $2.99 a month, and for our audience, the first two months are completely free if you sign up at and use the promo code MICROBE.

Become a patron of TWiP.

Case Study for TWiP 113

22 yo female comes to clinic in Bronx, reports one week of vaginal discharge and itching. Looks bad, yellowish. Sexually active with boyfriend. He has no symptoms. Some discomfort on urination. Healthy, no prior surgeries, no allergies. Mother with diabetes, father has high bp. Takes oral contraceptive pills. Not employed, lives with mother and sisters. Substance abuse: some on occasion, marijuana and alcohol, no i.v. No pets. Diet: lot of fast food. Physical exam: slightly heavy, normal but vaginal exam: discharge, thick, slight yellow light green color, no strong odor, some redness to vaginal walls, no changes to cervix. 2 weeks from last menstrual period. 

Send your case diagnosis, questions and comments to

Direct download: TWiP113.mp3
Category:Science -- posted at: 8:07am PDT