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. 2022 Sep 23;13:911806. doi: 10.3389/fimmu.2022.911806

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Copyright © 2022 Hu, Feng, Li, Yu, Rashid, Xing, Ruan, Lu, Wei and Shao

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Co-receptor usage of pseudoviruses from individuals 1808 and 1809. Expression of GFP in Ghost.CD4.CXCR4 cells or in Ghost.CD4.CCR5 cells after pseudoviruses infection. Only pseudoviruses In1808-3 can use co-receptor CXCR4. X4con-1109F and R5con-XJ13 as positive control for X4-tropic and R5-tropic, respectively.