Attenuation of a Highly Pathogenic Porcine Deltacoronavirus Strain CZ2020 by a Serial Passage In Vitro

Figure 2

Sequence comparison between CZ2020 and the reference PDCoV strains. CZ2020 variants at different passages and other PDCoV strains were aligned using Clustal W. The dashed lines show the nucleotide deletions in the shaded region.