title: [Determination of biotypes of the genus Haemophilus and study of the sensitivity to ampicillin in hospital practice. Study of 500 strains].
abstract: The authors use a biologic micromethod to identify five hundred species and biotypes of Haemophilus strains isolated from clinical specimens. The relation between biotypes and infection is studied. A rapid and highly accurate test to search for beta-lactamase production is done to determined the actual ampicillin resistance in Haemophilus for different biotypes. 6.9 p. cent of Haemophilus influenzae and 17.5 p. cent of Haemophilus para-influenzae were found resistant to ampicillin.
mesh_terms: D000667:Ampicillin / Q000627:therapeutic use*; D006190:Haemophilus / Q000201:enzymology / Q000472:pathogenicity; D006192:Haemophilus Infections / Q000188:drug therapy / Q000382:microbiology; D006193:Haemophilus influenzae; D006801:Humans; D010403:Penicillin Resistance; D013045:Species Specificity; D001618:beta-Lactamases / Q000032:analysis
chemical_list: D000667:Ampicillin; D001618:beta-Lactamases
vernacular_title: Détermination des biotypes du genre Haemophilus et étude de la sensibilité à l'ampicilline en pratique hospitalière. Etude de 500 souches.