The TWiP professors solve the case of the Baby With Pericardial Effusion, and discuss whether the flagellate without a flagella, Dientamoeba fragilis, causes human illness.
The TWiPsters solve the case of the Brazilian Immigrant With Heart Problems, and describe how genome organization controls trypanosome antigenic variation.
The TWiPlets solve the case of the Electrician from Tamil Nadu with a Liver Mass, and reveal that dogs and humans share a common Chadian Guinea worm.
The TWiP triptych solve the case of the 9/11 Survivor infested with parasites, and discuss the effect of community ivermectin treatment for onchocerciasis on Loa loa infections.
The TWiP hosts solve the case of the Thai Woman With Red Bumps, and reveal that a master manipulator contacts ant brain tissue to control its behavior.
The TWiP professors solve the case of the Woman With Intracellular Ring Forms, and explore the role of Coxiella and Rickettsia endosymbionts in acquisition of Babesia by ticks.
The TWiP crew solves the case of the Ecuadorian with Immunodeficiency and Chronic Diarrhea, and discuss oral transmission of Chagas disease in mice.
Justin joins the TWiP team to solve the case of the Gentleman with B cell Lymphoma, and consider the finding of Dracunculus species in river otters from Arkansas.
Vincent and Daniel solve the case of the Man in the City with Groin Rash, catch up on the long backlog of email, and present a new case, possibly the most complex one yet on the show.
Vincent and Daniel solve the case of the Panamanian Farmer with Three Weeks of Diarrhea, and discuss how microbes egested during bites of sand flies exacerbate the severity of leishmaniasis.