Theodoridis, A.; Lecatsas, G.; De Kock, V.E.; De Lange, M.; Bigalke, R.D.; Cameron, Colin McKenzie; Walker, Jane B.; Verster, Anna J.M.
(Published by the Government Printer, Pretoria, 1973)
Electron microscope studies on the three ephemeral fever virus (EFV) strains EFVl, EFV13 (South Africa) and Japanese bovine epizootic fever (BEF) virus (Strain YHK) showed that the normally cone-shaped South African EFV, ...