To better understand Simian betaretrovirus (SRV) seropositivity in virus-negative macaques, we transfused blood from SRV-infected or suspect donors into immunosuppressed naive recipients. Our results do not support typical SRV1-5 infection as the cause, but provide evidence for several possibilities including serological artifact, new/different SRV, or an endogenous virus.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5559289PMC
http://dx.doi.org/10.1111/jmp.12295DOI Listing

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