The belief that children's immune systems need to be exposed to viruses and bacteria in order to strengthen them, but that children are overprotected from this exposure, is called the _____.
A) sterile environment theory
B) hygiene hypothesis
C) spore theory
D) immunity hypothesis

Question

Quizplus · Accepted Answer

The belief that children need exposure to germs and bacteria in order to develop a stronger immune system is called the hygiene hypothesis.

The Belief That Children's Immune Systems Need to Be Exposed