Epidemiological aspects of Proteus infections with particular reference to phage typing

The properties and characteristics of 296 Proteus strains isolated from hospital patients and from sewage have been examined with a view to determining those characters which are of most use in following and detecting cross-infection.Ninety-six per cent of the organisms isolated were P. mirabilis and it was found that by identifying biotypes and by phage typing the species could be divided into a relatively large number of groups which would be useful for epidemiological investigation.