Evaluation de la consommation des antibiotiques dans un h“pital universitaire Tunisien

Purpose: To estimate the consumption of antibiotics in our hospital and to determine the points at which the recommendations of good practice of antibiotherapy will be targeted. Patients and methods: Our study is a one day prevalence study where antibiotic prescriptions are analyzed by a group of 6 doctors referents in antibiotherapy. During the study day, 443 patients were studied. Means age was 44.2 +/- 23.3 years [range: 1 and 102 years]. 101 infections were diagnosed in 48 patients [10.8%]. 192 patients [43.3%] received antibiotics. Antibiotherapy was curative in 44% of cases. The most prescribed antibiotics were gentamicin [85.2 DDD/1000 patients], metronidazole [79 DDD/1000 patients], and cefotaxime [73.9 DDD/1000 patients]. According to the evaluation group, 30.7% of the antibiotic prescription was considered unjustified. The antibioprophylaxis represents the category most often unjustified [49%]. The molecules in which prescription was frequently considered unjustified are the ciprofloxacin [67%], the amoxicillin-clavulonate [40%] and the cefotaxime [40%]. Our results suggest that an action of good practice should be targeted at the antibioprophylaxis and should concern especially molecules in which prescription was frequently unjustified

Contribution a l'etude des interactions hote-parasite chez coccus hesperidum L [Hom Coccidae] et son parasite coccophagus scutellaris dalman [Hym Aphelinidae]

Intensity of egg laying of Coccophagus scutellaris depends on the number of hosts available. It is found to be more important when the female has severall hosts. Furthermore a better distribution of eggs is observed in that case. When parasited and umparasited hosts are available, the female of Coccophagus deposits more eggs on the latter. This discriminating ability in relation to number and kinds of hosts available is discussed