Mason, J.H.; Neitz, W.O.; Du Toit, P.J.
(Pretoria : The Government Printer, 1940)
(1) Bluetongue virus inoculated intravenously, subcutaneously, intranasally, or through scarifications on the buccal mucous membrane did not cause any apparent illness in cattle.
(2) Inoculated cattle developed a maladie ...