The Giardians of the Galaxy solve the case of the Woman With a Colonic Stowaway from Hispaniola, and discuss activation of intestinal tuft cells by Trichinella spiralis.
The TWiP-tologists solve the case of the Child in South America With Belly Pain, and reveal how B1 cell IgE blocks parasite clearance by inhibiting mast cell activation by B2 cell IgE.