THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES

Serum and oral swab samples were collected from a persistently infected cow and her calf in a two-month period to test usefulness of oral swab samples for the detection of bovine viral diarrhea virus. Nucleic acids of the virus were detected by two molecular methods: conventional gel-based RT-PCR an...

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Main Authors: Ivan Toplak, Danijela Rihtarič, Peter Hostnik, Janko Mrkun
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2015-03-01
Series:Slovenian Veterinary Research
Online Access:https://www.slovetres.si/index.php/SVR/article/view/36
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author Ivan Toplak
Danijela Rihtarič
Peter Hostnik
Janko Mrkun
author_facet Ivan Toplak
Danijela Rihtarič
Peter Hostnik
Janko Mrkun
author_sort Ivan Toplak
collection DOAJ
description Serum and oral swab samples were collected from a persistently infected cow and her calf in a two-month period to test usefulness of oral swab samples for the detection of bovine viral diarrhea virus. Nucleic acids of the virus were detected by two molecular methods: conventional gel-based RT-PCR and commercial real-time RT-PCR. The bovine viral diarrhea virus genome was detected in serum and oral swab samples on days 0, 7, 15, 22, 23, 29, 36, 37, 43, 44, 46, 51, 52, 53, and 57. The dry cotton swabs showed a reduction of diagnostic sensitivity after three days when samples were stored at room temperature (+ 21 °C), but storage of oral swab samples at + 4 °C or in a freezer (< – 15 °C) for at least 10 days had no negative impact on the detection of the virus. No reduction of diagnostic sensitivity was observed when oral swab samples were collected in tubes with a liquid virus transport medium. Oral swabs provide an easy, reliable and cost-effective sampling tool for identification of PI animals, together with RT-PCR methods. The oral swab sampling could be especially useful for screening newborn calves during testing and removing PI animals from bovine viral diarrhea virus-infected herds.
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spelling doaj.art-2b15c965266047a0a5d2720d163a838b2024-04-03T12:40:59ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Slovenian Veterinary Research1580-40032385-87612015-03-01521THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLESIvan ToplakDanijela RihtaričPeter HostnikJanko MrkunSerum and oral swab samples were collected from a persistently infected cow and her calf in a two-month period to test usefulness of oral swab samples for the detection of bovine viral diarrhea virus. Nucleic acids of the virus were detected by two molecular methods: conventional gel-based RT-PCR and commercial real-time RT-PCR. The bovine viral diarrhea virus genome was detected in serum and oral swab samples on days 0, 7, 15, 22, 23, 29, 36, 37, 43, 44, 46, 51, 52, 53, and 57. The dry cotton swabs showed a reduction of diagnostic sensitivity after three days when samples were stored at room temperature (+ 21 °C), but storage of oral swab samples at + 4 °C or in a freezer (< – 15 °C) for at least 10 days had no negative impact on the detection of the virus. No reduction of diagnostic sensitivity was observed when oral swab samples were collected in tubes with a liquid virus transport medium. Oral swabs provide an easy, reliable and cost-effective sampling tool for identification of PI animals, together with RT-PCR methods. The oral swab sampling could be especially useful for screening newborn calves during testing and removing PI animals from bovine viral diarrhea virus-infected herds.https://www.slovetres.si/index.php/SVR/article/view/36
spellingShingle Ivan Toplak
Danijela Rihtarič
Peter Hostnik
Janko Mrkun
THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
Slovenian Veterinary Research
title THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
title_full THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
title_fullStr THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
title_full_unstemmed THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
title_short THE USEFULNESS OF TWO MOLECULAR METHODS FOR THE DETECTION OF PERSISTENTLY INFECTED CATTLE WITH BOVINE VIRAL DIARRHEA VIRUS USING ORAL SWAB SAMPLES
title_sort usefulness of two molecular methods for the detection of persistently infected cattle with bovine viral diarrhea virus using oral swab samples
url https://www.slovetres.si/index.php/SVR/article/view/36
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