Adam, a Once Active Normal Three-Year Old Boy, Was Experiencing

Multiple Choice

Adam, a once active normal three-year old boy, was experiencing increasing bouts of lethargy and began to regress developmentally.His mother scheduled an appointment with his pediatrician, who ordered a number of different blood tests.The most notable blood test result that piqued the physician's interest was a pronounced eosinophilia.Which of the following would be most likely to cause this abnormality?

A) infection with Giardia intestinalis
B) infection with a parasitic helminth
C) malaria
D) infection with Cryptosporidium spp.
E) viral infection