题目：
The nurse is teaching parents how to reduce the spread of impetigo. The nurse should encourage parents to
A. teach children to cover mouths and noses when they sneeze.
B. have their children immunized against impetigo.
C. teach children the importance of proper hand washing.
D. isolate the child with impetigo from other members of the family.
答案：
参考答案：C
解析：The spread of childhood infections, including impetigo, can be reduced when children are taught proper hand-washing technique. Because impetigo is spread through direct contact, covering the mouth and nose when sneezing won’t prevent its spread. Currently, there’s no vaccine to prevent a child from contracting impetigo. Isolating the child with impetigo is unnecessary.
