| mortality event in freshwater drum aplodinotus grunniens from lake ontario, canada, associated with viral haemorrhagic septicemia virus, type iv. | a mortality event primarily affecting freshwater drum aplodinotus grunniens was noted during april and may 2005 in the bay of quinte, lake ontario, canada. a conservative estimate of the number of dead drum was approximately 100 metric tonnes. large numbers of dead round goby neogobius melanostomus were also seen, as well as a few muskellunge esox masquinongy. in the drum, there was a consistent histological pattern of variably severe panvasculitis, a necrotising myocarditis, meningoencephalitis ... | 2007 | 17760383 |