The invention belongs to the technical field of
biology, and discloses a replication-deficient CAV2
recombinant virus for expressing a
rabies virus ERA-G
antigen gene, and the replication-deficient CAV2
recombinant virus is a recombinant canine type 2 adenovirus and is preserved in China Center for Type Culture Collection; the preservation date is March 13, 2024; the preservation number is CCTCC (China Center For Type Culture Collection) NO: The preservation address is Wuhan University, Wuhan, China. The
recombinant virus has a good protection effect, is particularly suitable for nasal drip and
intramuscular injection combined immunization, and can be efficiently rescued, propagated and passaged in a specific
cell line. Meanwhile, the invention also provides a rescue method, a passage or propagation method and a vaccine of the recombinant
virus as well as another replication-defective CAV2 recombinant
virus and application of the replication-defective CAV2 recombinant virus.