Volume 54 (2004) Issue: 2004 No#1

ISOLATION AND CONFIRMATION OF BOVINE VIRAL DIARRHOEA VIRUS IN SERBIA AND COMPARATIVE TYPING WITH RECENT SLOVENIAN ISOLATES

Author(s): Petrović T, ĐuričIć Bosiljka, Toplak I, Lazić S, Barlič Maganja Darja, Hostnik P, Grom J, Sandvik T

Keywords:bovine viral diarrhoea virus; RT-PCR; genotyping; phylogenetic analysis

The results of an investigation on bovine viral diarrhoea virus (BVDV) in fetal calf serum (FCS), whole blood and pathological material obtained from sick or dead cattle in Serbia are presented. Whole blood and FCS from sick animals were screened for BVDV antigen (Erns) by ELISA. ELISA positive samples and pathological material from dead animals were inoculated into primary cell cultures of fetal calf testis (FTTe). After threefold passage in FTTe cells, BVDV was detected by direct immunofluorescence and indirect immunoperoxidase tests and by reverse transcriptase-polymerase chain reaction (RT-PCR). Among 64 individual samples of FCS, two were positive for noncytopathogenic BVDV. One cytopathogenic BVDV was isolated from a whole blood sample from a heifer with clinical signs of mucosal disease. The 5'-untranslated region (5'-UTR) of three Serbian BVDV isolates was amplified by RT-PCR, sequenced and, together with 15 recent Slovenian BVDV isolates, characterised by phylogenetic analysis. All isolates were classified as BVDV genotype 1 viruses. The majority of the BVDV isolates were of the 1f (Serbia - 2 isolates, Slovenia – 7 isolates) and 1d subtypes (Slovenia - 7 isolates), whilst one Serbian and one Slovenian isolate were genotyped as BVDV 1b.


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ISSN: 0567-8315

eISSN: 1820-7448

Journal Impact Factor 2023: 0.7

5-Year Impact Factor: 0.8

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