Human DNA is easy to find in the environment, with samples of such good quality it can identify individual people. That's both a boon and a burden for researchers.
“We’ve been consistently surprised throughout this project at how much human DNA we find and the quality of that DNA,” David Duffy, the UF professor of wildlife disease genomics heading up the research, said. “In most cases, the quality is almost equivalent to if you took a sample from a person.”
This of course is great for researchers who use DNA samples in their studies, like archeologists or anthropologists, but it also brings all kinds of moral implications with it, especially around consent and civil liberties.“It’s standard in science to make these [DNA] sequences publicly available," Duffy said. "But that also means if you don’t screen out human information, anyone can come along and harvest this information. That raises issues around consent.
“Any time we make a technological advance, there are beneficial things that the technology can be used for and concerning things that the technology can be used for. It’s no different here,” Duffy said. “These are issues we are trying to raise early so policymakers and society have time to develop regulations.”
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