Abstract

Despite the ongoing pandemic and its worldwide impact, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lacks the same capacity to antagonize the type I interferon (IFN) response as its predecessor, SARS-CoV. Lokugamage et al. (e01410-20) found that SARS-CoV-2 cannot overcome type I IFN pretreatment in three different in vitro cell culture systems. Compared to the resistance observed for SARS-CoV, the results suggest that the two group 2B coronaviruses have distinct mechanisms for type I IFN antagonism.

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