after the onset of epstein-barr virus dna and protein synthesis 10 h after superinfection of raji cells ( a cell line containing epstein-barr virus dna but not producing virus ) , filamentous structures 25 nm in diameter and 0.2 to 1.4 micrometers in length could be detected in the cell cytoplasm by electron microscopy .
C0007634
cell
C0010834
cytoplasm