Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV

Between 2015 and 2018, we identified the presence of three so-far-unknown Bluetongue virus (BTV) strains (BTV-MNG1/2018, BTV-MNG2/2016, and BTV-MNG3/2016) circulating in clinical healthy sheep and goats in Mongolia. Virus isolation from EDTA blood samples of BTV-MNG1/2018 and BTV-MNG3/2016 was succe...

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Main Authors: Christina Ries, Tumenjargal Sharav, Erdene-Ochir Tseren-Ochir, Martin Beer, Bernd Hoffmann
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/13/1/42
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author Christina Ries
Tumenjargal Sharav
Erdene-Ochir Tseren-Ochir
Martin Beer
Bernd Hoffmann
author_facet Christina Ries
Tumenjargal Sharav
Erdene-Ochir Tseren-Ochir
Martin Beer
Bernd Hoffmann
author_sort Christina Ries
collection DOAJ
description Between 2015 and 2018, we identified the presence of three so-far-unknown Bluetongue virus (BTV) strains (BTV-MNG1/2018, BTV-MNG2/2016, and BTV-MNG3/2016) circulating in clinical healthy sheep and goats in Mongolia. Virus isolation from EDTA blood samples of BTV-MNG1/2018 and BTV-MNG3/2016 was successful on the mammalian cell line BSR using blood collected from surveillance. After experimental inoculation of goats with BTV-MNG2/2016 positive blood as inoculum, we observed viraemia in one goat and with the EDTA blood of the experimental inoculation, the propagation of BTV-MNG2/2016 in cell culture was successful on mammalian cell line BSR as well. However, virus isolation experiments for BTV-MNG2/2016 on KC cells were unsuccessful. Furthermore, we generated the complete coding sequence of all three novel Mongolian strains. For atypical BTV, serotyping via the traditional serum neutralization assay is not trivial. We therefore sorted the ‘putative novel atypical serotypes’ according to their segment-2 sequence identities and their time point of sampling. Hence, the BTV-MNG1/2018 isolate forms the ‘putative novel atypical serotype’ 33, the BTV-MNG3/2016 the ‘putative novel atypical serotype’ 35, whereas the BTV-MNG2/2016 strain belongs to the same putative novel atypical serotype ‘30’ as BTV-XJ1407 from China.
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spelling doaj.art-085b21472938458fbc31e4b3386941002023-11-21T03:00:24ZengMDPI AGViruses1999-49152020-12-011314210.3390/v13010042Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTVChristina Ries0Tumenjargal Sharav1Erdene-Ochir Tseren-Ochir2Martin Beer3Bernd Hoffmann4Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17943 Greifswald-Insel Riems, GermanySchool of Veterinary Medicine, Mongolian University of Life Sciences, Khan-uul District, Zaisan 17024, MongoliaSchool of Veterinary Medicine, Mongolian University of Life Sciences, Khan-uul District, Zaisan 17024, MongoliaFriedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17943 Greifswald-Insel Riems, GermanyFriedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17943 Greifswald-Insel Riems, GermanyBetween 2015 and 2018, we identified the presence of three so-far-unknown Bluetongue virus (BTV) strains (BTV-MNG1/2018, BTV-MNG2/2016, and BTV-MNG3/2016) circulating in clinical healthy sheep and goats in Mongolia. Virus isolation from EDTA blood samples of BTV-MNG1/2018 and BTV-MNG3/2016 was successful on the mammalian cell line BSR using blood collected from surveillance. After experimental inoculation of goats with BTV-MNG2/2016 positive blood as inoculum, we observed viraemia in one goat and with the EDTA blood of the experimental inoculation, the propagation of BTV-MNG2/2016 in cell culture was successful on mammalian cell line BSR as well. However, virus isolation experiments for BTV-MNG2/2016 on KC cells were unsuccessful. Furthermore, we generated the complete coding sequence of all three novel Mongolian strains. For atypical BTV, serotyping via the traditional serum neutralization assay is not trivial. We therefore sorted the ‘putative novel atypical serotypes’ according to their segment-2 sequence identities and their time point of sampling. Hence, the BTV-MNG1/2018 isolate forms the ‘putative novel atypical serotype’ 33, the BTV-MNG3/2016 the ‘putative novel atypical serotype’ 35, whereas the BTV-MNG2/2016 strain belongs to the same putative novel atypical serotype ‘30’ as BTV-XJ1407 from China.https://www.mdpi.com/1999-4915/13/1/42atypical BTVputative novel serotypesBTV in MongoliaBTV in sheep and goatsBTV
spellingShingle Christina Ries
Tumenjargal Sharav
Erdene-Ochir Tseren-Ochir
Martin Beer
Bernd Hoffmann
Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
Viruses
atypical BTV
putative novel serotypes
BTV in Mongolia
BTV in sheep and goats
BTV
title Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
title_full Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
title_fullStr Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
title_full_unstemmed Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
title_short Putative Novel Serotypes ‘33’ and ‘35’ in Clinically Healthy Small Ruminants in Mongolia Expand the Group of Atypical BTV
title_sort putative novel serotypes 33 and 35 in clinically healthy small ruminants in mongolia expand the group of atypical btv
topic atypical BTV
putative novel serotypes
BTV in Mongolia
BTV in sheep and goats
BTV
url https://www.mdpi.com/1999-4915/13/1/42
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