Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.

Soon after the beginning of the COVID-19 pandemic in early 2020, the Betacoronavirus SARS-CoV-2 infection of several mink farms breeding American minks (Neovison vison) for fur was detected in various European countries. The risk of a new reservoir being formed and of a reverse zoonosis from minks q...

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Main Authors: Marine Wasniewski, Franck Boué, Céline Richomme, Etienne Simon-Lorière, Sylvie Van der Werf, Flora Donati, Vincent Enouf, Yannick Blanchard, Véronique Beven, Estelle Leperchois, Bryce Leterrier, Sandrine Corbet, Meriadeg Le Gouil, Elodie Monchatre-Leroy, Evelyne Picard-Meyer
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0290444
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author Marine Wasniewski
Franck Boué
Céline Richomme
Etienne Simon-Lorière
Sylvie Van der Werf
Flora Donati
Vincent Enouf
Yannick Blanchard
Véronique Beven
Estelle Leperchois
Bryce Leterrier
Sandrine Corbet
Meriadeg Le Gouil
Elodie Monchatre-Leroy
Evelyne Picard-Meyer
author_facet Marine Wasniewski
Franck Boué
Céline Richomme
Etienne Simon-Lorière
Sylvie Van der Werf
Flora Donati
Vincent Enouf
Yannick Blanchard
Véronique Beven
Estelle Leperchois
Bryce Leterrier
Sandrine Corbet
Meriadeg Le Gouil
Elodie Monchatre-Leroy
Evelyne Picard-Meyer
author_sort Marine Wasniewski
collection DOAJ
description Soon after the beginning of the COVID-19 pandemic in early 2020, the Betacoronavirus SARS-CoV-2 infection of several mink farms breeding American minks (Neovison vison) for fur was detected in various European countries. The risk of a new reservoir being formed and of a reverse zoonosis from minks quickly became a major concern. The aim of this study was to investigate the four French mink farms to see whether SARS-CoV-2 was circulating there in late 2020. The investigations took place during the slaughtering period, thus facilitating different types of sampling (swabs and blood). On one of the four mink farms, 96.6% of serum samples were positive when tested with a SARS-CoV-2 ELISA coated with purified N protein recombinant antigen, and 54 out of 162 (33%) pharyngo-tracheal swabs were positive by RT-qPCR. The genetic variability among 12 SARS-CoV-2 genomes sequenced from this farm indicated the co-circulation of several lineages at the time of sampling. All the SARS-CoV-2 genomes detected were nested within the 20A clade (Nextclade), together with SARS-CoV-2 genomes from humans sampled during the same period. The percentage of SARS-CoV-2 seropositivity by ELISA varied between 0.3 and 1.1% on the other three farms. Interestingly, among these three farms, 11 pharyngo-tracheal swabs and 3 fecal pools from two farms were positive by end-point RT-PCR for an Alphacoronavirus very similar to a mink coronavirus sequence observed on Danish farms in 2015. In addition, a mink Caliciviridae was identified on one of the two farms positive for Alphacoronavirus. The clinical impact of these inapparent viral infections is not known. The co-infection of SARS-CoV-2 with other viruses on mink farms could help explain the diversity of clinical symptoms noted on different infected farms in Europe. In addition, the co-circulation of an Alphacoronavirus and SARS-CoV-2 on a mink farm would potentially increase the risk of viral recombination between alpha and betacoronaviruses as already suggested in wild and domestic animals, as well as in humans.
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publisher Public Library of Science (PLoS)
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spelling doaj-art-cbd0da01ff4b43149f62e0bca06b6ef12025-08-23T05:32:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01188e029044410.1371/journal.pone.0290444Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.Marine WasniewskiFranck BouéCéline RichommeEtienne Simon-LorièreSylvie Van der WerfFlora DonatiVincent EnoufYannick BlanchardVéronique BevenEstelle LeperchoisBryce LeterrierSandrine CorbetMeriadeg Le GouilElodie Monchatre-LeroyEvelyne Picard-MeyerSoon after the beginning of the COVID-19 pandemic in early 2020, the Betacoronavirus SARS-CoV-2 infection of several mink farms breeding American minks (Neovison vison) for fur was detected in various European countries. The risk of a new reservoir being formed and of a reverse zoonosis from minks quickly became a major concern. The aim of this study was to investigate the four French mink farms to see whether SARS-CoV-2 was circulating there in late 2020. The investigations took place during the slaughtering period, thus facilitating different types of sampling (swabs and blood). On one of the four mink farms, 96.6% of serum samples were positive when tested with a SARS-CoV-2 ELISA coated with purified N protein recombinant antigen, and 54 out of 162 (33%) pharyngo-tracheal swabs were positive by RT-qPCR. The genetic variability among 12 SARS-CoV-2 genomes sequenced from this farm indicated the co-circulation of several lineages at the time of sampling. All the SARS-CoV-2 genomes detected were nested within the 20A clade (Nextclade), together with SARS-CoV-2 genomes from humans sampled during the same period. The percentage of SARS-CoV-2 seropositivity by ELISA varied between 0.3 and 1.1% on the other three farms. Interestingly, among these three farms, 11 pharyngo-tracheal swabs and 3 fecal pools from two farms were positive by end-point RT-PCR for an Alphacoronavirus very similar to a mink coronavirus sequence observed on Danish farms in 2015. In addition, a mink Caliciviridae was identified on one of the two farms positive for Alphacoronavirus. The clinical impact of these inapparent viral infections is not known. The co-infection of SARS-CoV-2 with other viruses on mink farms could help explain the diversity of clinical symptoms noted on different infected farms in Europe. In addition, the co-circulation of an Alphacoronavirus and SARS-CoV-2 on a mink farm would potentially increase the risk of viral recombination between alpha and betacoronaviruses as already suggested in wild and domestic animals, as well as in humans.https://doi.org/10.1371/journal.pone.0290444
spellingShingle Marine Wasniewski
Franck Boué
Céline Richomme
Etienne Simon-Lorière
Sylvie Van der Werf
Flora Donati
Vincent Enouf
Yannick Blanchard
Véronique Beven
Estelle Leperchois
Bryce Leterrier
Sandrine Corbet
Meriadeg Le Gouil
Elodie Monchatre-Leroy
Evelyne Picard-Meyer
Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
PLoS ONE
title Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
title_full Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
title_fullStr Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
title_full_unstemmed Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
title_short Investigations into SARS-CoV-2 and other coronaviruses on mink farms in France late in the first year of the COVID-19 pandemic.
title_sort investigations into sars cov 2 and other coronaviruses on mink farms in france late in the first year of the covid 19 pandemic
url https://doi.org/10.1371/journal.pone.0290444
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