Christina returns to the TWiP trifecta to solve the case of the Beachgoer with Red Lines on Her foot, and an experimental malaria vaccine based on the junctional region of the circumsporozoite protein displayed on a virus-like particle.
The TWiPanosomes solve the case about the Young Woman who Went to Belize, and relate how sandfly saliva skews the immune response and increases risk of cutaneous leishmaniasis.