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Case Report

SARS-CoV-2 Seroconversion in an Adult Horse with Direct Contact to a COVID-19 Individual

1
Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
2
Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92093, USA
3
National Center for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB R3E 3M4, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Romain Paillot
Viruses 2022, 14(5), 1047; https://doi.org/10.3390/v14051047
Received: 27 April 2022 / Revised: 9 May 2022 / Accepted: 12 May 2022 / Published: 14 May 2022
(This article belongs to the Section SARS-CoV-2 and COVID-19)
The authors report on a possible direct exposure to SARS-CoV-2 from a COVID-19-positive individual to an adult horse. The individual, diagnosed with COVID-19 (Delta B.1.617.2), had daily contact to her two horses prior to and during the development of clinical disease. None of the two horses developed abnormal clinical signs or had detectable SARS-CoV-2 in blood, nasal secretion, or feces via RT-qPCR. However, one of the two horses showed close temporal seroconversion to SARS-CoV-2 using a protein-based ELISA and the plaque reduction neutralization test. The results suggest that horses can become silently infected with SARS-CoV-2 following close contact with humans infected with SARS-CoV-2. As a precautionary measure, humans infected with SARS-CoV-2 should avoid close contact with equids and other companion animals during the time of their illness to prevent viral transmission. View Full-Text
Keywords: SARS-CoV-2; horse; antibodies; COVID-19; spillover SARS-CoV-2; horse; antibodies; COVID-19; spillover
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MDPI and ACS Style

Pusterla, N.; Chaillon, A.; Ignacio, C.; Smith, D.M.; Barnum, S.; Lawton, K.O.Y.; Smith, G.; Pickering, B. SARS-CoV-2 Seroconversion in an Adult Horse with Direct Contact to a COVID-19 Individual. Viruses 2022, 14, 1047. https://doi.org/10.3390/v14051047

AMA Style

Pusterla N, Chaillon A, Ignacio C, Smith DM, Barnum S, Lawton KOY, Smith G, Pickering B. SARS-CoV-2 Seroconversion in an Adult Horse with Direct Contact to a COVID-19 Individual. Viruses. 2022; 14(5):1047. https://doi.org/10.3390/v14051047

Chicago/Turabian Style

Pusterla, Nicola, Antoine Chaillon, Caroline Ignacio, Davey M. Smith, Samantha Barnum, Kaila O. Y. Lawton, Greg Smith, and Bradley Pickering. 2022. "SARS-CoV-2 Seroconversion in an Adult Horse with Direct Contact to a COVID-19 Individual" Viruses 14, no. 5: 1047. https://doi.org/10.3390/v14051047

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