Aim: Previous research has shown that bovine herpesvirus-1 (BHV-1) in Indonesia was closely related to subtype-1 based on glycoprotein D genes. This study aimed to analyze the genetic variability of the BHV-1 isolated from the recent case in Indonesia not only based on gD but also other genes such as gB and gM and to study the homology and similarity of the sample to other BHV-1 isolated in other countries or regions.

Materials and Methods: Samples were drawn from the tracheal organ in recent field case and prepared for DNA extraction. The gB, gD, and gM were amplified using nested polymerase chain reaction (nPCR) with our specifically designed primer pair and based on the specified bands of 350 bp gB, 325 bp gD, and 734 bp gM confirmed as BHV-1. The PCR product was ligated into pGEM-T and transformed into competent Escherichia coli. The purified plasmid was subsequently sequenced.

Results: The virus sample isolated from the recent field case of infectious bovine rhinotracheitis (IBR) from Indonesia showed variability based on the gB, gD, and gM sequences. However, all of the genes had high similarity (98-100%) to BHV-1.2.

Conclusion: The recent field case of IBR in Indonesia was similar to BHV-1.2.

Keywords: bovine herpesvirus-1.1, bovine herpesvirus-1.2, glycoprotein B, glycoprotein D, glycoprotein M.

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