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Should animal testing be banned?
Differences between animals and humans mean positive results for animal subjects do not correspond with positive results for humans.
There are significant risks associated with working off of incorrect information.
Diseases in animals
are often substantially different than diseases in humans, meaning that breakthroughs in solving animal diseases don't necessarily translate to helping people.
It is trivially obvious that animals are not identical to humans, and so many important differences will exist. However, researches identify the crucial similarity that the drug is trying to treat, and are therefore animals are useful models (
Nuffield , p.138
Human genes can be
into mice. These 'humanized mice' are used to study diseases and drugs, in a way which closely replicates results that might be obtained from human testing.