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FeFAB cells (a kind gift from Dr Martin Löchelt, Germany) are modified CRFK cells that are used for FFV infection experiments. FeFAB cells express β-galactosidase under the。

The flanking sequences of the 3′ LTR were left unaltered by this strategy. Transfection of these chimeric vectors into 293T cells and harvest of supernatants 48 h later。

FeFAB assay indicated that the culture supernatants collected from the infected and drug-pretreated cells contained infectious FFV virions, which induce expression of the β-galactosidase in the ...

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