Fig. 2
From: Detection and characterization of a novel marine birnavirus isolated from Asian seabass in Singapore

Transmission electron microscope observation of BF-2 cells infected with case A17/2/15 organ suspension. a Virus particles found in cells infected with case A17/2/15 organ suspension were found to be ~ 50 nm in diameter with icosahedral shape; b No virus particle can be seen in uninfected BF-2 cell control