There is emerging evidence that mice with a history of microbial exposures can better model the human immune system than laboratory mice maintained in pathogen-free conditions. In this Perspective, Rehermann and colleagues summarize different approaches that have been used to incorporate microbiota and pathogen exposures into laboratory mouse models. They suggest that the term ‘mice with natural microbiota’ should be used instead of ‘dirty mice’ to describe these systems in the future.
- Barbara Rehermann
- Andrea L. Graham
- Sara E. Hamilton