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Multiple-sequence alignment dendrogram based on 208 bp of sequence from hypervariable E region of the capsid gene of FCV-Diva (isolates 15 and 24), FCV-Ari, FCV-F9(Merial and Norden vaccine isolates), and two mildly pathogenic routine field isolates (FCV 2–20, FCV 2–80). Branch lengths indicate genetic distance as calculated by UPGMA. FCV-Diva isolates 15 and 24 cluster by themselves on a distant arm, while all other isolates are more closely related to FCV-F9-related vaccine strains.
