title: [Multiple antibiotic resistance in Haemophilus influenzae related to serogroup B].
abstract: OBJECTIVE
  To study the association between multiply antibiotic resistance in Haemophilus influenzae and H. influenzae type B, and to describe levels and patterns of antibiotic resistance.
  
  
  METHODS
  Statistical analysis and susceptibility of 231 H. influenzae strains (52 type B and 179 non-typable ) isolated consecutively from pediatric patients.
  
  
  RESULTS
  Resistance levels for type B and non-typable strains were: Ampicillin, 55.3% vs 28.8%; Chloramphenicol, 44.7% vs 9.2%; Ampicillin plus chloramphenicol, 40.4% vs 7.6%; cotrimoxazole, 89.3% vs 67.4%; resistance to six or more antibiotics, 36.0% vs 3.8%.
  
  
  CONCLUSIONS
  Multiply antibiotic resistance in H. influenzae is strongly associated with type B strains, with age of 4 or younger, and with isolation from CSF or blood. Resistance is sustained over long periods of time.
authors.affiliation: Servicio de Microbiología, Hospital Sant Joan de Déu, Barcelona.
authors.forename: J
authors.initials: J
authors.lastname: Campos
authors.forename: T
authors.initials: T
authors.lastname: Seuba
authors.forename: G
authors.initials: G
authors.lastname: Trujillo
authors.forename: A
authors.initials: A
authors.lastname: Rodríguez
authors.forename: J
authors.initials: J
authors.lastname: Roca
mesh_terms: D002675:Child, Preschool; D004352:Drug Resistance, Microbial; D006192:Haemophilus Infections / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology; D006193:Haemophilus influenzae / Q000145:classification / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D006801:Humans; D007223:Infant; D012703:Serotyping; D013030:Spain / Q000453:epidemiology
vernacular_title: Resistencia de Haemophilus influenzae a múltiples antibióticos asociada al serogrupo B.