Neonatal Calf Diarrhoea: Identification of a Reovirus-Like (Rotavirus) * *Since this paper was accepted for publication, the name “rotavirus” has been proposed for viruses with a similar morphology to the virus described here (Flewett, T. H., Bryden, A. S., Davies, H., Woode, G. N., Bridger, J. C. & Derrick, J. M. Lancet (1974) ii, 61). Agent in Faeces by Immunofluorescence and Immune Electron Microscopy