Scientific literature on viral evolution, paleovirology, and seroepidemiology confirms that humanity has been widely infected by various persistent and historic viruses across all populations.
The claim is specific and empirically verifiable. Several retrieved papers discuss the co-evolution of viruses like coronaviruses and polyomaviruses with humans, as well as endogenous viral elements and paleovirology demonstrating universal exposure to certain viral lineages across populations in the past and present. Therefore, the evidence clearly supports the claim.