This week happens to be a national awareness week for this case. Good luck!
A mother brings her 5 year old child into your clinic this morning, saying that her daughter has been vomiting the entire night. When you look at the child, she appears obtunded and lethargic; she is fairly nonresponsive to stimuli and when she walks, she stumbles about.
Here is her blood smear (Wright's stain) with the abnormal findings indicated by the arrows.
Challenge: If you know that this is not congenital, then the differential narrows down to...what?
1. What's seen on the blood smear?
2. What's the clinical diagnosis?
Image shown under fair use.