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Volume 30, Number 2—February 2024
Research Letter

SARS-CoV-2 Infection in Beaver Farm, Mongolia, 2021

Taichiro Takemura1Comments to Author , Ulaankhuu Ankhanbaatar1, Tirumala Bharani K. Settypalli, Dulam Purevtseren, Gansukh Shura, Batchuluun Damdinjav, Hatem Ouled Ahmed Ben Ali, William G Dundon, Giovanni Cattoli, and Charles E. Lamien
Author affiliations: International Atomic Energy Agency, Seibersdorf, Austria (T. Takemura, T.B.K. Settypalli, H.O.A.B. Ali, W.G. Dundon, G. Cattoli, C.E. Lamien); State Central Veterinary Laboratory, Ulaanbaatar City, Mongolia (U. Ankhanbaatar, D. Purevtseren, G. Shura, B. Damdinjav)

Main Article

Table

Sampling date and results of serologic analysis of SARS-CoV-2 antibodies from farmed beavers, Ulaanbaatar, Mongolia, 2021*

Animal ID Status Date of swab sampling and qRT-PCR results
 Date of serum sampling and ELISA results†
2021 Aug 13 2021 Aug 19 2021 Sep 12 2021 Aug 13 2021 Aug 18 2021 Sep 12
1 Died Sep 8 Positive NT NT NT NT NT
2 Died 2021 Sep 8 Positive NT NT NT NT NT
3 Sick Positive Positive Positive Negative Negative Positive
4 Sick Positive Positive Positive Negative Negative Positive
5 Sick Positive Positive Positive Negative Positive Positive
6 Sick Positive Positive Positive Positive Positive Positive
7 Sick Positive Positive Positive Positive Positive Intermediate
8 Sick Positive Positive Negative Positive Positive Positive
9 Sick Positive Positive Negative Negative Positive Positive
10 Healthy NT NT NT NT NT Positive
11 Healthy NT NT NT NT NT Negative

*ID, identification; qRT-PCR, quantitative reverse transcription PCR; NT, not tested. †ID Screen SARS-CoV-2 Double Antigen Multi-species ELISA (Innovative Diagnostics, https://www.innovative-diagnostics.com). The interpretation is based on the signal-to-noise (S/N) ratio, (sample optical density [OD] 450/negative control OD450) × 100, according to instruction manual. Positive: S/N>100.0; intermediate: 100.0>S/N>50.0; negative: 50.0>S/N.

Main Article

1These first authors contributed equally to this article.

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Page updated: January 24, 2024
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