1887

Abstract

SUMMARY

The caliciviruses (feline picornavirus and vesicular exanthema virus) have a diam. of 35 to 40 nm and possess a distinctive morphology which clearly distinguishes them from the other members of the family Picornaviridae. They also differ in having an ratio of about 1.52 compared with 1.65 to 1.70 for the picornaviruses. More significantly, they are unique among the mammalian viruses in containing only one major polypeptide, mol. wt. about 65 × 10. Feline picornavirus and vesicular exanthema virus differ from each other in their behaviour in caesium chloride gradients and in the base composition of their RNAs. Our evidence suggests that the two viruses are not typical picornaviruses but are in fact distinct members of a new virus family, the Caliciviridae.

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/content/journal/jgv/10.1099/0022-1317-22-2-281
1974-02-01
2022-08-17
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