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.

The TWiPonderers solve the case of the Timber Worker with Severe Shaking Chills, and describe an experimental malaria vaccine comprising attenuated sporozoites produced by genetic engineering.