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TWiP 268: A loyal parasite

Release Date: 11/09/2025

This Week in Parasitism

TWiP travels to Toronto, CA for the American Society for Tropical Medicine and Hygiene conference where they meet up with Martin Grobusch to discuss his career and his work. Hosts: , , and Christina Naula Guest: Subscribe (free): , , , Links for this episode Join the MicrobeTV Primaquine for blocking (Lancet Inf Dis) , Sierra Leone (New Microb New Inf) Become a of TWiP Send your questions and comments to Music by

TWiP 268: A loyal parasite

This Week in Parasitism

TWiP discusses a 41-year long human infection with Schistosoma mansoni, and CRISPR screens that reveal genes essential for Cryptosporidium survival in the host intestine. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Schistosoma infection (J Travel Med) Genes essential for Cryptosporidium (Nat Comm) Become a of TWiP Send your questions and comments to Music by

TWiP 267: It dropped from her scalp

This Week in Parasitism

TWiP solves the case about the female who traveled to Brazil and upon returning home felt movements under her scalp on the back of her head, and present another case for your solving, a man with abnormal brain MRI. Hosts: , , and Christina Naula Guest: Subscribe (free): , , , Links for this episode Join the MicrobeTV Life cycle of Dermatobia hominis on TWiP 267 New Case Man in his 40s, married with 2 children, on Eliquis for a prior DVT, diet-controlled diabetes, who is admitted for evaluation of an abnormal brain MRI. He left AMA...

TWiP 266: Wraps and ivermectin for malaria

This Week in Parasitism

TWiP explains research showing that treatment of baby wraps with an insect repellent, and oral dosing with ivermectin, are both effective measures to prevent malaria. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Treated baby wraps (NEJM) prevents malaria (NEJM) Become a of TWiP Send your questions and comments to Music by

TWiP 265: Things that jump are cleaner than things that squat

This Week in Parasitism

TWiP solves the case about the parasite check in summer camp, and presents a new case about a woman who traveled to Brazil and developed furuncles on the back of her head. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Hero: Francesco Redi Wikipedia: Linda Hall Library, Kansas: Habermehl, G., (1994). Francesco Redi—Life and work, Toxicon 32 (4) . on TWiP 265 New Case From Eyal Leshem, a returning case “provider” 43 years old female who travelled to Brazil on May 2025 for a...

TWiP 264: Toxoplasma changes your brain

This Week in Parasitism

Vincent and Daniel discuss research showing that Toxoplasma gondii infection of the brain alters extracellular vesicle production and the communication between neurons and astrocytes. Hosts: and Subscribe (free): , , , Links for this episode Join the MicrobeTV T. gondii (PLoS Path) Become a of TWiP Send your questions and comments to Music by

TWiP 263: Tick-tock

This Week in Parasitism

TWiP solves the case of the world travelers with poppy-seed size dots embedded in their skin, then present a new case about parasite check in summer camp. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Hero: on TWiP 263 New Case It is the first day of summer camp and the children are lined up for a parasite check. Some of the children have certificates that allow them to bypass the screening. Some of the parents are upset about this process commenting that this is not required by the state and...

TWiP 262: Do schistosomes affect behavior?

This Week in Parasitism

TWiP reviews research suggesting that schistosome infection affect behavior through the gut-brain axis, and Chuck Knirsch joins to reminisce about Dickson Despommier. Hosts: , , and Christina Naula Guest: Chuck Knirsch Subscribe (free): , , , Links for this episode Join the MicrobeTV Does affect behavior? (PLoS NTD) Hero: (NY Times) Become a of TWiP Send your questions and comments to Music by

TWiP 261: A case for Dr. Hickam

This Week in Parasitism

TWiP solves the case of the pregnant woman from Tanzania with dehydration and 3 weeks of bloody stool, a situation that would confuse Ockam but not Dr. Hickam. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Hero: Dame Bridget Ogilvie ( and ) on TWiP 261 New Case I feel like the back section of our book has been a bit neglected. The new PD 8th Edition is posted on our website so please download a copy and extra points to anyone who can tell us what that is on the cover. Three individuals are...

TWiP 260: Daily rhythms

This Week in Parasitism

TWiP explains how circadian clocks of parasite and vector circadian mediate efficient malaria transmission. Hosts: , , and Christina Naula Subscribe (free): , , , Links for this episode Join the MicrobeTV Clocks mediate (Nat Micro) Hero: () Become a of TWiP Send your questions and comments to Music by

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TWiP discusses a 41-year long human infection with Schistosoma mansoni, and CRISPR screens that reveal genes essential for Cryptosporidium survival in the host intestine.

Hosts: Vincent Racaniello, Daniel Griffin, and Christina Naula

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41 year old Schistosoma infection (J Travel Med)
Genes essential for Cryptosporidium survival in host intestine (Nat Comm)

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Music by Ronald Jenkees

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