
Keywords: نوکلئوتید; aa; amino acid; BRSV; bovine respiratory syncytial virus; DMEM; Dulbecco's modified Eagle's medium; HRSV; human respiratory syncytial virus; JC; Jukes Cantor; mAb; monoclonal antibody; NJ; neighbour joining; nt; nucleotide; RT-PCR; reverse transcripti