Highly infectious free virions in the hemolymph of the silkworm (Bombyx mori) infected with a nuclear polyhedrosis virus.
D000818:Animals; D012831:Bombyx / Q000382:microbiology*; D006458:Hemolymph / Q000382:microbiology*; D007304:Insect Viruses / Q000302:isolation & purification* / Q000472:pathogenicity; D008854:Microscopy, Electron