[Enterobacteriaceae isolated in nine general hospitals of the Ile-de-France in 1988 and 1989: susceptibility to beta-lactam antibiotics according to the length of hospitalisation].
Susceptibility to beta-lactam antibiotics of strains of Enterobacteriaceae consecutively isolated in nine general hospitals during a period of 2 months (march and april) has been studied by the disk-agar diffusion method. The separation between susceptible and resistant strains was based on the measure of the inhibition zones centered by 2 disks: cephalothin and ticarcillin. Enterobacteriaceae were divided in 2 groups: strains isolated during the first 48 h of hospitalisation or isolated after. Fifty one per cent of the strains were isolated during the first 48 h: they did not belong to the residential flora of these hospitals. Klebsiella, Proteus indole positive, Providencia, Enterobacter, Serratia were more frequently isolated after 48 h of hospitalisation. Susceptible strains of Klebsiella, Proteus indole positive, Providencia, Serratia were more rarely isolated after 48 h of hospitalisation. E. coli whatever the duration of hospitalisation, is the less frequent susceptible bacterium.
Pean
Y
Y
Laboratoire de Microbiologie, Hôpital International de l'Université de Paris.
Hacquard
B
B
Berardi-Grassias
L
L
Boisivon
A
A
Bejot
J
J
Eme
A
A
Le Pennec
M P
MP
Morice
J
J
Rouchon
M
M
Gertner
J
J
D002512:Cephalothin / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004755:Enterobacteriaceae / Q000187:drug effects* / Q000302:isolation & purification; D004756:Enterobacteriaceae Infections / Q000382:microbiology*; D005602:France; D006801:Humans; D066298:In Vitro Techniques; D007902:Length of Stay; D013982:Ticarcillin / Q000494:pharmacology*
D013982:Ticarcillin; D002512:Cephalothin
Sensibilité aux bêtalactamines en fonction de la durée d'hospitalisation des entérobactéries isolées dans neuf hôpitaux généraux d'Ile-de-France en 1988 et 1989.