virus is often confined to these cells and the progeny virus, in the form of new polyhedra are excreted in the insect feces, thus contaminating more foliage resulting in the spread of the disease to additional insects. The progression of the disease can be rather slow, but the virus infection is normally fatal. Species The genus Cypovirus consists of 16 accepted species: Cypovirus 1 through Cypovirus 16. See also Baculoviridae – members of this family may also cause polyhedrosis Betairidovirinae – members of this subfamily may also cause iridescence References External links dsRNA viruses NCBI Viralzone: Cypovirus ICTV Virus genera Spinareovirinae