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Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021

The newly emerged SARS-CoV-2, causing COVID-19 in humans, is also infecting American mink (Neovison vison), used in fur production. Since 2020, passive surveillance of SARS-CoV-2 in mink farms was implemented in Lithuania. Here, we describe data from a survey of all 57 active Lithuanian mink farms c...

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Autores principales: Žigaitė, Silvija, Masiulis, Marius, Bušauskas, Paulius, Pilevičienė, Simona, Buitkuvienė, Jūratė, Paulauskas, Vidmantas, Malakauskas, Alvydas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10288870/
https://www.ncbi.nlm.nih.gov/pubmed/37360410
http://dx.doi.org/10.3389/fvets.2023.1181826
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author Žigaitė, Silvija
Masiulis, Marius
Bušauskas, Paulius
Pilevičienė, Simona
Buitkuvienė, Jūratė
Paulauskas, Vidmantas
Malakauskas, Alvydas
author_facet Žigaitė, Silvija
Masiulis, Marius
Bušauskas, Paulius
Pilevičienė, Simona
Buitkuvienė, Jūratė
Paulauskas, Vidmantas
Malakauskas, Alvydas
author_sort Žigaitė, Silvija
collection PubMed
description The newly emerged SARS-CoV-2, causing COVID-19 in humans, is also infecting American mink (Neovison vison), used in fur production. Since 2020, passive surveillance of SARS-CoV-2 in mink farms was implemented in Lithuania. Here, we describe data from a survey of all 57 active Lithuanian mink farms carried out during November–December 2021 to complement passive surveillance in the country. In all 57 mink farms, nasopharyngeal swab samples were collected from dead or live mink and tested by real-time RT-PCR. Dead mink samples were tested in pools of 5, while live mink samples were tested individually. In 19 mink farms, blood serum was collected and tested for antibodies to determine previous exposure to the virus. Environmental samples from 55 farms were also collected and tested in pooled samples by real-time RT-PCR. The present survey has detected 22.81% viral RNA-positive mink farms and a high number of mink farms that were exposed (84.21, 95% CI 67.81–100%) to the virus. The increasing exposure of mink farms to the virus due to growing human COVID-19 cases and limitations of passive surveillance could explain the observed epidemiological situation of SARS-CoV-2 in Lithuanian mink farms, compared to the few positive farms previously detected by passive surveillance. The unexpected widespread exposure of mink farms to SARS-CoV-2 suggests that passive surveillance is ineffective for early detection of SARS-CoV-2 in mink. Further studies are needed to reveal the present status in previously infected mink farms.
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spelling pubmed-102888702023-06-24 Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021 Žigaitė, Silvija Masiulis, Marius Bušauskas, Paulius Pilevičienė, Simona Buitkuvienė, Jūratė Paulauskas, Vidmantas Malakauskas, Alvydas Front Vet Sci Veterinary Science The newly emerged SARS-CoV-2, causing COVID-19 in humans, is also infecting American mink (Neovison vison), used in fur production. Since 2020, passive surveillance of SARS-CoV-2 in mink farms was implemented in Lithuania. Here, we describe data from a survey of all 57 active Lithuanian mink farms carried out during November–December 2021 to complement passive surveillance in the country. In all 57 mink farms, nasopharyngeal swab samples were collected from dead or live mink and tested by real-time RT-PCR. Dead mink samples were tested in pools of 5, while live mink samples were tested individually. In 19 mink farms, blood serum was collected and tested for antibodies to determine previous exposure to the virus. Environmental samples from 55 farms were also collected and tested in pooled samples by real-time RT-PCR. The present survey has detected 22.81% viral RNA-positive mink farms and a high number of mink farms that were exposed (84.21, 95% CI 67.81–100%) to the virus. The increasing exposure of mink farms to the virus due to growing human COVID-19 cases and limitations of passive surveillance could explain the observed epidemiological situation of SARS-CoV-2 in Lithuanian mink farms, compared to the few positive farms previously detected by passive surveillance. The unexpected widespread exposure of mink farms to SARS-CoV-2 suggests that passive surveillance is ineffective for early detection of SARS-CoV-2 in mink. Further studies are needed to reveal the present status in previously infected mink farms. Frontiers Media S.A. 2023-06-09 /pmc/articles/PMC10288870/ /pubmed/37360410 http://dx.doi.org/10.3389/fvets.2023.1181826 Text en Copyright © 2023 Žigaitė, Masiulis, Bušauskas, Pilevičienė, Buitkuvienė, Paulauskas and Malakauskas. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Veterinary Science
Žigaitė, Silvija
Masiulis, Marius
Bušauskas, Paulius
Pilevičienė, Simona
Buitkuvienė, Jūratė
Paulauskas, Vidmantas
Malakauskas, Alvydas
Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title_full Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title_fullStr Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title_full_unstemmed Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title_short Evaluation of SARS-CoV-2 passive surveillance in Lithuanian mink farms, 2020–2021
title_sort evaluation of sars-cov-2 passive surveillance in lithuanian mink farms, 2020–2021
topic Veterinary Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10288870/
https://www.ncbi.nlm.nih.gov/pubmed/37360410
http://dx.doi.org/10.3389/fvets.2023.1181826
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