Development and evaluation of two truncated recombinant NP antigen-based indirect ELISAs for detection of bovine parainfluenza virus type 3 antibodies in cattle

- The immunodominant regions of nuclecapsid protein of bovine parainfluenza virus type 3 were identified.
- The ELISAs based on immunodominant regions were established.
- The ELISAs were sensitive, rapid, and reliable using for the specific and sensitive diagnosis of BPIV3 infection in cattle.