The TWiPers solve the case of the Panamanian Man With Leg Ulcer, and describe how a crab predator preferentially feeds on parasite infected prey – even though the parasite makes them faster!

Shivang joins the TWiP triumvirate to solve the case of the New Yorker With Rash and Pins and Needles, and reveal how agrochemicals increase risk of human schistosomiasis by causing high snail density.

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.