MCLEAN, D M Powassan and Silverwater viruses: ecology of two Ontario arboviruses. [electronic resource] - Canadian Medical Association journal Jan 1963 - 182-5 p. digital Publication Type: Journal Article ISSN: 0008-4409 Subjects--Topical Terms: AnimalsAntibodiesArbovirusesBunyaviridaeEcologyEncephalitis VirusesEncephalitis Viruses, Tick-BorneInsect VectorsOntarioRodentiaSciuridaeTicks