NDV infection preferentially degraded STAT1 protein. 2fTGH cells (A) or Vero cells (B) were mock infected or infected with rBC, rBC/V-stop, rBC/Edit, SV5, or hPIV2. At 20 h postinfection, whole-cell extracts were subjected to electrophoresis and probed for STAT1 and STAT2 as well as viral protein HN by immunoblotting. Actin was used as a loading control.