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Interferon-β 1a inhibits SARS-CoV-2 in vitro when administered after virus infection.

ABSTRACT

The ongoing COVID-19 pandemic has forced the clinical and scientific community to try drug repurposing of existing antiviral agents as a quick option against SARS-CoV-2. Under this scenario, the interferon-β 1a (IFN-β 1a) whose antiviral potential is already known, and is a drug currently used in the clinical management of multiple sclerosis, may represent as a potential candidate. In this report, we demonstrate that IFN-β 1a was highly effective in inhibiting in vitro SARS-CoV-2 replication at clinically achievable concentration when administered after virus infection. © The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.