| http://www.w3.org/ns/prov#value | - Molecular biologists have named such particles human endogenous retroviruses (HERVs), though the term virus is misleading; some may be no more than harmless cell products, while others may even have a useful role.5 Cells of the immune system, which defend us against invaders like germs and pollutants and other hazards, are particularly active genetically.
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