CASE 5: A 7-year-old boy is taken to the emergency room by…
CASE 5: A 7-year-old boy is taken to the emergency room by his mother after she finds him unresponsive in his bed. She states that her son was sent home from school 3 days earlier after showing flu-like symptoms. He awoke the next morning with body aches, a cough, a sore throat, and a runny nose. After 2 days of taking over-the-counter children’s cold medicine, he had not improved. Upon arriving at the hospital, he is dehydrated, pale, and shaky. The physician notes that he is wheezing and has slight difficulty breathing. A chest X-ray indicates pneumonia of the right lung, which is subsequently determined to be viral. Viral antigens are often unable to activate B-Cells directly. In this event, B-Cells will display viral antigens on their surface. The displayed antigens can then be recognized by _____, which activate the B-Cells and cause clonal expansion.
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