First published 5 June, 1997.
Graham Cluley, senior technical consultant at the UK anti-virus house, said that macro viruses are still growing at a rate of about five per day: "The anti-virus business just goes on and on. There are about five new macro viruses a day, although many of them are mutations of existing viruses. There must be close to 100 variations each of Wazzu and Concept alone. The graph is getting sharper."