| detection of dnas homologous to betanodavirus genome rnas in barfin flounder verasper moseri and japanese flounder paralichthys olivaceus. | i investigated the presence of dna homologous to genome rna1 and rna2 (rna1 dna and rna2 dna) of betanodaviruses - the causative agent of viral nervous necrosis (vnn) --in eggs, sperm, ovarian cavity fluid, larvae, and juveniles of barfin flounder verasper moseri and larvae and juveniles of japanese flounder paralichthys olivaceus collected at 6 sites in hokkaido, japan, from 1994 to 2001. rna1 dna and rna2 dna were detected by pcr in 13 and 33 % of barfin flounder samples and 0 and 69% of japan ... | 2006 | 17190201 |