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Defective Viruses
Defective Hybrids; Defective Hybrid; Defective Interfering Particle; Defective Interfering Virus; Defective Virus; Hybrid, Defective; Hybrids, Defective; Incomplete Virus; Interfering Particle, Defective; Interfering Particles, Defective
Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.