Circoviridae

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VIRUSES



Introduction

Circoviruses are the smallest known viruses of vertebrates and plants, and cause immunosuppressive infections of pigs, poultry, and parrots. No vaccines are currently available against them.

Morphology

  • Genome is a single molecule of circular positive-sense DNA, which encodes for one major capsid protein

Virulence and Pathogenesis

  • Viruses are very stable in the environment

Virus by Species

Avian Circoviruses Porcine Circoviruses