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A member asked:
How much time will dna stay on a swab or a toothbrush?
4 doctors weighed in across 2 answers
Preservation: If the swab or toothbrush is preserved under ideal conditions, a very, very long time. See below link: http://crev.Info/2013/07/longevity-of-dna-estimated/.
Answered 11/9/2018
4.1k views
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For a long time: as long as the swab stays dry the DNA is preserved for a long time. You can use cotton-tipped swabs or a brand new toothbrush, because the toothpaste on a used brush will compromise the DNA results.
Answered 10/22/2018
2.8k views
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