ERRATUM
Volume 65, no. 1, e01508-20, 2021, https://doi.org/10.1128/AAC.01508-20. Materials and Methods section, “nsp7 and nsp8 protein expression and purification” paragraph, 2nd sentence: “nsp7” should read “nsp8.” The correct sentence is “Specifically, the entire MBP sequence of pMal-c5X (nucleotides 1527 to 2628) was replaced with the nsp8 gene sequence with the addition of an N-terminal 6-His tag.” This typographical error does not have any impact on the conclusions of the paper.