Lab mice are too clean

Published April 28, 2020

When it comes to testing vaccines, a new study out of the universities of Iowa and Minnesota found that lab mice may simply not be dirty enough. Humans have been exposed to a lot of bacteria, after all, so maybe the lab mice should be too.

Scientists commonly use “clean” mice — which are raised in conditions that are free of certain bacteria and viruses […] However, the immune response of a clean mouse may not translate well to humans, whose immune systems are constantly exposed to various illnesses.

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