Fig. 3.

Quantitative analysis of cell-free infection by LuSIA using CC81-GREMG. a CC81-GREMG cells were cultured with or without supernatant collected from FLK-BLV cells, which are productively infected with BLV. b Correlation of the amount of BLV p24 protein ELISA in the culture supernatant, as determined by BLV p24 capture, and the number of syncytia expressing EGFP when CC81-GREMG cells were cultured with serially diluted FLK-BLV supernatant. Results of three independent experiments are shown individually