Figure 7. Diagram showing a two-step adaptation process of chicken embryo-adapted IBV to Vero cells.

Also shown are the numbers of amino acid changes during each adaptation process. ^aThe accession No. for S genes from EP3 is DQ001338, p7 is DQ001337, p65 is DQ001339. ^bThe accession No. for this Vero-adapted strain is AAV98206. ^cThe accession No. for these two strains are CAC39114 and CAC39300.