VSV-G HIV-1 and VSV-G SFFV infection of child and adult CD4⁺ T-cell lines. Child and adult cell lines were infected with the pseudotyped viruses, and EGFP expression was monitored by cytofluorimetric analysis 6 days after infection. (Top panel) Results of single experiment representative of 6 independently performed. (Bottom panel) Mean ± SEM. Child and adult cell lines showed a similar capacity of supporting both HIV-1 LTR and SFFV expression.