Fig. 2From: Isolation of Ontario aquatic bird bornavirus 1 and characterization of its replication in immortalized avian cell linesDetection of ABBV-1 replication by IFA, in DF-1, CCL-141, and QT-35 at early passages. Representative pictures of IFA from ABBV-1-infected DF-1, CCL-141, and QT-35 at passages 1–3 post-infection. Blue fluorescence shows DAPI nuclear counterstain, and green fluorescence indicates ABBV-1 N protein. The fourth column shows a magnified area of the picture on the third column. Speckled or punctate signal in the nucleus is more readily observed in infected CCL-141 (fourth column) compared to the than the other cell lines. Scale bar, 100 μmBack to article page