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[–] derram 0 points 0 points (+0|-0) ago 

https://archive.fo/cAt2Y :

Squeaky Clean Mice Could Be Ruining Research - Scientific American

'Humans, wild mice and pet-shop mice are swarming with these tissue-resident memory T cells. '

'Until now, the lab mice have been kept in a squeaky clean environment, free from most diseases, so some will fall ill and die. '

'After a month bunking with the pet-shop mice, the newly dirty lab mice had many of the same immunological features as wild and pet-shop mice2. '

'Lab mice had many fewer cancer- and infection-fighting memory T cells—immune cells that have previously been exposed to pathogens—in their blood. '

'The lab mice would pick up whatever the pet-shop mouse was carrying—everything from fur mites and pinworms to mouse hepatitis—and perhaps become immunologically more like the pet-shop mouse. '


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