| detection and sequence analysis of dna polymerase and major envelope protein genes in koi herpesviruses derived from cyprinus carpio in gunma prefecture, japan. | koi herpesvirus (khv), which is believed to be an emerging virus, causes fatal diseases in carps. since the 1990s, the presence of khv has been confirmed in several countries. in japan, from 2003 to 2004, large outbreaks of khv infection in farmed carps resulted in the death of numerous fishes. from april to may 2004, we collected 43 dead or dying carps exhibiting typical symptoms of khv infection in gunma prefecture. to conduct a molecular epidemiologic study of khv in our prefecture, we amplif ... | 2005 | 16125879 |