Cargando…
Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa
Viruses in the Orthobunyavirus genus, Peribunyaviridae family, are associated with encephalitis, birth defects and fatalities in animals, and some are zoonotic. Molecular diagnostic investigations of animals with neurological signs previously identified Shuni virus (SHUV) as the most significant ort...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536486/ https://www.ncbi.nlm.nih.gov/pubmed/37764908 http://dx.doi.org/10.3390/pathogens12091100 |
_version_ | 1785112876935020544 |
---|---|
author | van der Walt, Miné Rakaki, Matshepo E. MacIntyre, Caitlin Mendes, Adriano Junglen, Sandra Theron, Cherise Anthony, Tasneem O’Dell, Nicolize Venter, Marietjie |
author_facet | van der Walt, Miné Rakaki, Matshepo E. MacIntyre, Caitlin Mendes, Adriano Junglen, Sandra Theron, Cherise Anthony, Tasneem O’Dell, Nicolize Venter, Marietjie |
author_sort | van der Walt, Miné |
collection | PubMed |
description | Viruses in the Orthobunyavirus genus, Peribunyaviridae family, are associated with encephalitis, birth defects and fatalities in animals, and some are zoonotic. Molecular diagnostic investigations of animals with neurological signs previously identified Shuni virus (SHUV) as the most significant orthobunyavirus in South Africa (SA). To determine if other orthobunyaviruses occur in SA, we screened clinical specimens from animals with neurological signs, abortions, and acute deaths from across SA in 2021 using a small (S) segment Simbu serogroup specific TaqMan real-time reverse transcription polymerase chain reaction (RT-PCR). Positive cases were subjected to Sanger sequencing and phylogenetic analysis to identify specific viruses involved, followed by next-generation sequencing (NGS) and additional PCR assays targeting the medium (M) segment and the large (L) segment. In total, 3/172 (1.7%) animals were PCR positive for Simbu serogroup viruses, including two horses with neurological signs and one aborted goat fetus in 2021. Phylogenetic analyses confirmed that the two horses were infected with SHUV strains with nucleotide pairwise (p-) distances of 98.1% and 97.6% to previously identified strains, while the aborted goat fetus was infected with a virus closely related to Shamonda virus (SHAV) with nucleotide p-distances between 94.7% and 91.8%. Virus isolation was unsuccessful, likely due to low levels of infectious particles. However, phylogenetic analyses of a larger fragment of the S segment obtained through NGS and partial sequences of the M and L segments obtained through RT-PCR and Sanger sequencing confirmed that the virus is likely SHAV with nucleotide p-distances between 96.6% and 97.8%. This is the first detection of SHAV in an aborted animal in SA and suggests that SHAV should be considered in differential diagnosis for abortion in animals in Southern Africa. |
format | Online Article Text |
id | pubmed-10536486 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105364862023-09-29 Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa van der Walt, Miné Rakaki, Matshepo E. MacIntyre, Caitlin Mendes, Adriano Junglen, Sandra Theron, Cherise Anthony, Tasneem O’Dell, Nicolize Venter, Marietjie Pathogens Article Viruses in the Orthobunyavirus genus, Peribunyaviridae family, are associated with encephalitis, birth defects and fatalities in animals, and some are zoonotic. Molecular diagnostic investigations of animals with neurological signs previously identified Shuni virus (SHUV) as the most significant orthobunyavirus in South Africa (SA). To determine if other orthobunyaviruses occur in SA, we screened clinical specimens from animals with neurological signs, abortions, and acute deaths from across SA in 2021 using a small (S) segment Simbu serogroup specific TaqMan real-time reverse transcription polymerase chain reaction (RT-PCR). Positive cases were subjected to Sanger sequencing and phylogenetic analysis to identify specific viruses involved, followed by next-generation sequencing (NGS) and additional PCR assays targeting the medium (M) segment and the large (L) segment. In total, 3/172 (1.7%) animals were PCR positive for Simbu serogroup viruses, including two horses with neurological signs and one aborted goat fetus in 2021. Phylogenetic analyses confirmed that the two horses were infected with SHUV strains with nucleotide pairwise (p-) distances of 98.1% and 97.6% to previously identified strains, while the aborted goat fetus was infected with a virus closely related to Shamonda virus (SHAV) with nucleotide p-distances between 94.7% and 91.8%. Virus isolation was unsuccessful, likely due to low levels of infectious particles. However, phylogenetic analyses of a larger fragment of the S segment obtained through NGS and partial sequences of the M and L segments obtained through RT-PCR and Sanger sequencing confirmed that the virus is likely SHAV with nucleotide p-distances between 96.6% and 97.8%. This is the first detection of SHAV in an aborted animal in SA and suggests that SHAV should be considered in differential diagnosis for abortion in animals in Southern Africa. MDPI 2023-08-28 /pmc/articles/PMC10536486/ /pubmed/37764908 http://dx.doi.org/10.3390/pathogens12091100 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article van der Walt, Miné Rakaki, Matshepo E. MacIntyre, Caitlin Mendes, Adriano Junglen, Sandra Theron, Cherise Anthony, Tasneem O’Dell, Nicolize Venter, Marietjie Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title | Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title_full | Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title_fullStr | Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title_full_unstemmed | Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title_short | Identification and Molecular Characterization of Shamonda Virus in an Aborted Goat Fetus in South Africa |
title_sort | identification and molecular characterization of shamonda virus in an aborted goat fetus in south africa |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536486/ https://www.ncbi.nlm.nih.gov/pubmed/37764908 http://dx.doi.org/10.3390/pathogens12091100 |
work_keys_str_mv | AT vanderwaltmine identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT rakakimatshepoe identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT macintyrecaitlin identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT mendesadriano identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT junglensandra identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT theroncherise identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT anthonytasneem identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT odellnicolize identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica AT ventermarietjie identificationandmolecularcharacterizationofshamondavirusinanabortedgoatfetusinsouthafrica |