Early exposure to germs and the Hygiene Hypothesis.

Publication Type:

Journal Article


Cell research, Volume 22, Issue 8, p.1210-1 (2012)


A recent paper suggests that reduced exposure to germs results in the expansion of a cell type called natural killer T cells, which predisposes to colitis and asthma. Such a scenario could explain the Hygiene Hypothesis, which has been a puzzle for decades.