Characterization of the recombinant virus BAC-C-KCE.
(A) Plaques of recombinant virus vBAC-C-KCE and parental virus C-KCE were shown under green light excitation, phase contrast, or merge (400×). (B) Investigation of the genetic stability of vBAC-C-KCE. The numbers represent the passages of the vBAC-C-KCE (400×). Red fluorescent protein as a selection marker was observed under fluorescence microscopy.