Differentiation of Proteus mirabilis and Proteus vulgaris strains by means of proticine typing : A longitudinal epidemiological study.
In the years 1979,1980,1982-83,1986-87 and 1992-93,673 strains of P. mirabiis and 25 strains of P. vulgaris were isolated from the urinary tracts of patients at a Teaching Hospital in Brno.
In 1982-93,335 strains of P. mirabilis and2 strains of P. vulgaris were isolated from the urine and faeces of two groups of Brno population and used as controls.
Using the P/S typing method, 94,7% of hospital isolates and 85,5% of control strains could be differentiated by their types.
The strains that could not be typed (8,2%) were classified as PO/SO of N types ; in the remaining strains, 182 various P/S types could be distinguished.
The strains that could not be typed occurred more frequently in control groups (48 out of 337) than in hospital isolates (37 out of 698).
Over the whole period, P5/S6, S7, S9 and P1/S2, S11 were the prevailing P/S types of hospital isolates and were placed, together with related types, in groups P5 and P1, respectively.
In 1982-83, a significant shift (p<0.01) from the initially prevailling P5/S6, S7, S9 type to the P1/S2, S11 type of P. mirabilis was recorded.
Approximately one third of the hospital isolates in all the periods examined was found to be sporadic, with the exception of 1992-93 when the sporadic strains doubled in frequency (p<0.01).
In control strains, the frequency of sporadic types was twice that of the hospital isolates (p<0.01) in 1982-83 and, in 1992-93, it was equal to the frequency of hospital isolates. (...)
Mots-clés Pascal : Infection nosocomiale, Voie urinaire pathologie, Homme, Proteus vulgaris, Enterobacteriaceae, Bactérie, Proteus mirabilis, Isolat clinique, Epidémiologie, Typage, Etude longitudinale, Hôpital, Hygiène, République tchèque, Europe, Appareil urinaire pathologie
Mots-clés Pascal anglais : Nosocomial infection, Urinary tract disease, Human, Proteus vulgaris, Enterobacteriaceae, Bacteria, Proteus mirabilis, Clinical isolate, Epidemiology, Typing, Follow up study, Hospital, Hygiene, Czech Republic, Europe, Urinary system disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0053036
Code Inist : 002B05A02. Création : 21/05/1997.