Lecatsas, G.South Africa. Dept. of Agricultural Technical ServicesTustin, R.C.De Lange, M.Reinecke, R.K.Walker, Jane B.De Kock, V.E.2015-07-082015-07-0820131970Lecatsas, G 1970, 'Further observations on the ultrastructure of ephemeral fever virus', Onderstepoort Journal of Veterinary Research, vol. 37, no. 2 , pp. 145-146.http://hdl.handle.net/2263/46337The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Electron microscope observations on ephemeral fever virus showed that the electron-dense material was helical in structure, that probably two strands 4 nm in diameter formed a limb approx. 17 nm in diameter with one complete turn of the helix occupying 10 nm. A proposed model of the virus is illustrated.en©South Africa. Dept. of Agricultural Technical Services (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary reportsSouth AfricaVeterinary medicine -- South AfricaEphemeridaeThree-day sickness in cattleArticle