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Transmission of severe acute respiratory syndrome coronavirus 2 from humans to animals: is there a risk of novel reservoirs? Fernández-Bastit, Leira Vergara-Alert, Júlia Segalés, Joaquim Producció Animal Sanitat Animal 619 Severe acute respiratory syndrome coronavirus 2 (SARS-CoV- 2) is a zoonotic virus able to infect humans and multiple nonhuman animal species. Most natural infections in companion, captive zoo, livestock, and wildlife species have been related to a reverse transmission, raising concern about potential generation of animal reservoirs due to human–animal interactions. To date, American mink and white-tailed deer are the only species that led to extensive intraspecies transmission of SARS-CoV-2 after reverse zoonosis, leading to an efficient spread of the virus and subsequent animal-to-human transmission. Viral host adaptations increase the probability of new SARS-CoV-2 variants’ emergence that could cause a major global health impact. Therefore, applying the One Health approach is crucial to prevent and overcome future threats for human, animal, and environmental fields. The SARS-CoV-2 work of the research team is and has been supported by the CBIG consortium (constituted by IRTA-CReSA, BSC & IrsiCaixa) through Grifols, the Centres de Recerca de Catalunya (CERCA) Programme/ Generalitat de Catalunya, the crowdfunding initiative #joemcorono (https://www.yomecorono.com), and the Banco Bilbao Vizcaya Argentaria (BBVA) Foundation as part of the project “Investigation on the potential role of pets as animal reservoirs for SARS-CoV-2”. info:eu-repo/semantics/publishedVersion 2023-10-02 info:eu-repo/semantics/article Fernández‐Bastit, Leira, Júlia Vergara‐Alert, and Joaquím Segalés. 2023. “Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 from Humans to Animals: Is There a Risk of Novel Reservoirs?” Current Opinion in Virology 63 (December): 101365. https://doi.org/10.1016/j.coviro.2023.101365. 1879-6257 http://hdl.handle.net/20.500.12327/2709 https://doi.org/10.1016/j.coviro.2023.101365 eng Current Opinion in Virology Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess 12 Elsevier