Some interesting research in reactivating mammoth genetic material (https://www.nature.com/articles/s41598-019-40546-1) made me wonder what risks are inherent (or are not inherent) in reviving older genomes that may have integrated latent viral code?
Are there potential biohazards in this line of research, where dormant viruses that have otherwise gone extinct (along with the extinct host) and which now may have the potential to be reactivated? Not just in terms of zoonoses that infect across species, but also viruses that infect modern animals that are more closely related or have relatively common ancestry (e.g., from mammoth to elephant).
Could a disease be brought back via this kind of research? Or are the conditions for waking latent viruses from starting material of this kind just not possible to recreate in a lab setting?
Edit: To clarify what I mean by potential biohazard in relation to this question: Experimental conditions result in a latent virus going into lytic phase. The virus is a communicable pathogen; it spreads outside the laboratory environment; it causes sickness or death to living organisms to the extent that it creates a public health, ecological, or other crisis of significance. For background, please also see: Cambridge, The Free Dictionary, and Wikipedia.