title: [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].
abstract: 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.
authors.affiliation: Laboratoire de Microbiologie, Hôpital International de l'Université de Paris.
authors.forename: Y
authors.initials: Y
authors.lastname: Pean
authors.forename: B
authors.initials: B
authors.lastname: Hacquard
authors.forename: L
authors.initials: L
authors.lastname: Berardi-Grassias
authors.forename: A
authors.initials: A
authors.lastname: Boisivon
authors.forename: J
authors.initials: J
authors.lastname: Bejot
authors.forename: A
authors.initials: A
authors.lastname: Eme
authors.forename: M P
authors.initials: MP
authors.lastname: Le Pennec
authors.forename: J
authors.initials: J
authors.lastname: Morice
authors.forename: M
authors.initials: M
authors.lastname: Rouchon
authors.forename: J
authors.initials: J
authors.lastname: Gertner
mesh_terms: 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*
chemical_list: D013982:Ticarcillin; D002512:Cephalothin
vernacular_title: 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.