Dose- and Time-Dependent Apoptosis Induced by Avian H9N2 Influenza Virus in Human Cells
Figure 3
H9N2 virus induces apoptosis in A549 cells at MOI 2.0. (a) Chromosomal DNA fragmentation. DNAs were prepared from A549 cells infected with virus at 8 h intervals and separated by 2% agarose gel electrophoresis, followed by staining with ethidium bromide. (b) Nuclear staining of the infected cells with Hoechst; arrows indicate apoptotic cells.
