'Additionally, there are reports that HIV-2 infection can reduce HIV-1-associated pathogenesis in dual-infected patients, and in cell culture. However, the mechanisms underlying these protective effects are not well understood. To decipher these mechanisms, we performed dual infections with HIV-1 and HIV-2 in cell culture.'

https://journals.asm.org/doi/10.1128/jvi.01870-22?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed