The TWiPsters solve the case of the Child from DR with Poppy Seed Sized Things On His Head Hair Shafts, and reveal how the skin parasite landscape determines the infectiousness of Leishmania.

Hosts: Vincent Racaniello and Daniel Griffin

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Links for this episode:

• Tr (Cell Host Microbe)
• Letters read on TWiP 138

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Case Study for TWiP 138

New Yorker, female teenager from an outer boroughs, visual loss in right eye noted during routine eye exam. Not sure when started. Left is 20-20, otherwise feels fine. No surgeries, no noted medical history, no medications, in school, living with family, no toxic habits. Travel: had been upstate NY in past year. No pets. Defect in right eye pupillary reflex, pallor to optic nerve. Serologies: toxocara, HCV, syphilis, all negative. Dilated fundal exam: sees 1850 microns motile worm in the eye. Not on surface, not Loa Loa.

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Music by Ronald Jenkees