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TWiP 272: Don't look and you won't find

This Week in Parasitism

Release Date: 01/15/2026

TWiP 287: A Vaccine Against Schistosomiasis? SchistoShield Heads to Phase 2 show art TWiP 287: A Vaccine Against Schistosomiasis? SchistoShield Heads to Phase 2

This Week in Parasitism

Mumtaz Balkhi joins TWiP to discuss phase 1 and 1b trials of the schistosomiasis vaccine SchistoShield which demonstrate that it induces functional immune memory responses in US and African populations. Hosts: , , and  Guest:  Subscribe (free): , , ,  Links for this episode Join the MicrobeTV   Phase 1 and 1b results (npj Vaccines) Become a  of TWiP  Send your questions and comments to  Music by 

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TWiP 286: Pinworms keep coming back! How to stop reinfection in your home show art TWiP 286: Pinworms keep coming back! How to stop reinfection in your home

This Week in Parasitism

TWiP solves the case of the adult female with a 2 year old child who develops anal irritation, but the child and the husband are fine. Hosts: , , and  Subscribe (free): , , ,  Links for this episode Join the MicrobeTV   on TWiP 286 Hero –  New Case Recent case. Woman in 20s, lives in NYC, goes to urgent care with 3 weeks of significant watery diarrhea, not improving. Otherwise healthy, no travel, works in office in NYC, at some point prior to onset she ate at a Taco Bell. Put on twice a day medication, molecular test of stool confirms...

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TWiP 285: Why Is Cyclospora So Hard to Contain? Parasitologists Explain the 2026 US Outbreak show art TWiP 285: Why Is Cyclospora So Hard to Contain? Parasitologists Explain the 2026 US Outbreak

This Week in Parasitism

TWiP reviews our current understanding of the biology of Cyclospora, the parasite currently causing a large multistate outbreak in the US traced to contaminated lettuce, and why it is so difficult to control. Hosts:  and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV   of Cyclospora cayetanensis (Comp Rev Food Sci Food Safety) Become a  of TWiP  Send your questions and comments to  Music by 

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TWiP 284: It's not the pork show art TWiP 284: It's not the pork

This Week in Parasitism

TWiP solves the case of the 39-year-old man originally from Guatemala, who moved to one of the NYC boroughs in 2023 and presented with headaches for nearly 1 year. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV   on TWiP 284 New Case Recent ID consult: MD/PhD mother doing research, married with child 2 yo, female develops anal irritation, husband is fine, child is fine. Parasitic etiology is considered. Referred to academic ID providers, turns out she had this etiology considered, had received some...

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TWiP 283: Warming up to cryptosporidiosis show art TWiP 283: Warming up to cryptosporidiosis

This Week in Parasitism

TWiP reviews the projected impact of climate change on the burden of Cryptosporidium in Mali, Kenya, and The Gambia. Hosts: and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV   on Cryptosporidium (J Inf Dis)  on TWiP 283 Become a  of TWiP  Send your questions and comments to  Music by 

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TWiP 282: Does he live in New York? show art TWiP 282: Does he live in New York?

This Week in Parasitism

TWiP solves the case of the nonbinary patient in his 30s with a history HIV/AIDS presenting with 3 weeks of subjective fevers, chills, generalized weakness and voluminous ostomy output. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV  Parasite of the Month:  (the green-banded broodsac)  on TWiP 282 New Case 39-year-old man originally from Guatemala, who moved to one of the NYC boroughs in 2023 and currently lives with his siblings and cousins, presented with headaches. He reports headaches for several...

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TWiP 281: Ants under the influence show art TWiP 281: Ants under the influence

This Week in Parasitism

TWiP reviews gene expression in wood ants infected with the larval lancet fluke, which causes them to leave their nest and attach to a flower until they are eaten by a grazing mammal. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV  Gene expression in wood ants  (Mol Ecol) Visualisation of the master manipulator in the (Sci Rep) Become a  of TWiP  Send your questions and comments to  Music by 

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TWiP 280: The wriggling diagnosis show art TWiP 280: The wriggling diagnosis

This Week in Parasitism

TWiP solves the case of the 3 yo child, who recently immigrated to the US from Central America, in the ER with acute right lower quadrant abdominal pain and a rather active serpiginous wormlike ‘thing’ wiggling away in the child’s appendix. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV  Hero:   on TWiP 280 New Case 3 yo child who recently immigrated to the US from Central America is brought in to the ER with acute right lower quadrant abdominal pain. The mother is concerned about the pain as...

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TWiP 279: Tolling for hookworms show art TWiP 279: Tolling for hookworms

This Week in Parasitism

TWiP reviews a phase 2 clinical trial of a recombinant vaccine against N. americanus glutathione S-transferase-1, an enzyme that performs a crucial enzymatic step in hookworm blood feeding. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV  Phase 2  clinical trial (Lancet Inf Dis) Phase 2  clinical trial (Vaccines) Become a  of TWiP  Send your questions and comments to  Music by 

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TWiP 278: Trichinella from eating bear eyeballs show art TWiP 278: Trichinella from eating bear eyeballs

This Week in Parasitism

TWiP solves the case of the male in his 20s from Hokkaido, Japan, who developed fatigue and rash, followed by fever and myalgia 6 days later, after eating a raw bear eyeball. Hosts: , , and Christina Naula Subscribe (free): , , ,  Links for this episode Join the MicrobeTV  Hero: Sir Nicholas White (1951 – 2026) (, )  on TWiP 278 New Case 3 yo child who recently immigrated to the US from Central America is brought in to the ER with acute right lower quadrant abdominal pain. The mother is concerned about the pain as well as nausea and vomiting....

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More Episodes

TWiP solves the case about the man with positive Strongyloides serology who is waiting for a kidney transplant.

Hosts: Vincent RacanielloDaniel Griffin, and Christina Naula

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Links for this episode

New Case

40 year old man travels to India, is only there for a week before he develops problems. Bloating, diarrhea. Weathers the storm. Returns to US. Stool sent for testing. Some interesting results. Comes back positive for Hymenolepis nanaBlastocystis hominisGiardia intestinalis. Recommended he take four tablets. Flatulence. HIV negative. He ate food that were prepared in the home but also out. Delhi area. 

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Music by Ronald Jenkees

Dear TWiP listeners,

Have you ever wondered how TWiP shapes your understanding of science? We have! To find out more, Christina and the team are running a survey based study to learn more about how TWiP contributes to your scientific literacy and trust in science. Listen to the segment in this episode (TWiP 267) where Christina discusses the study’s aims and scope.  

Anyone who listens to TWiP can participate. The survey is anonymous and we do not collect personal data that could identify you. There are no potential disadvantages or harms in taking part, other than using a few minutes of your time. You will receive no direct benefit from taking part in this study. However, the information that is collected during this study will give us a better understanding of who our listeners are, and why they choose to listen to TWiP. We can use this understanding to make TWiP even better!

This is an academic study and we aim to disseminate our findings to the wider public, including you. For example, we’ll have a conversation about the findings on a future episode of TWiP, we plan conference presentations and publication in a relevant academic journal

The project has been reviewed and approved by the University of Glasgow College of Medical, Veterinary & Life Sciences Ethics Committee. Application 200250013

You can find the study, detailed participant information, and consent information here: 

TWiP study – information and survey