a:  T cell ~
b:  sniper
What:  "Antibodies are like a fence, but a T-cell is like a sniper fighting off infections," Bramson explained.""While there may be something wrong with the fence in older people, the research shows that the sniper is still very much intact."
Useful?
Writer:  Jonathan Bramson
LCC: 
Where:
Date:   Jan 10 2014  6:03 PM
# 4653 Critique Analogy
