[Isolation frequency of enteropathogenic Escherichia coli in the Patro distric from 1974 to 1986].

In the Prato district in the years 1974-1986 the isolation frequency of serogropus of enteropathogenic Escherichia coli on 12,251 faeces samples pertinent to infantile diarrhoea has been studied. The research reveals a constant decrease in the isolation frequency of the serogroups considered. An hypothesis is quite difficult but this finding is taking world-wide consistency: furthermore some items are distinctive of the researched district and therefore quite interesting.