Avtor/Urednik | Mueller-Premru, Manica; Gubina, Marija | |
Naslov | Serotype, antimicrobial susceptibility and clone distribution of Pseudomonas aeruginosa in a University hospital | |
Tip | članek | |
Vir | Zentralbl Bakteriol | |
Vol. in št. | Letnik 289, št. 8 | |
Leto izdaje | 1999 | |
Obseg | str. 857-67 | |
Jezik | eng | |
Abstrakt | To study the epidemiology of Pseudomonas (P.) aeruginosa, serotyping and antibiotic susceptibility testing were performed on 208 clinical isolates. Sixteen of these isolates were additionally examined by pulsed-field gel electrophoresis (PFGE) of chromosomal DNA. All 208 isolates belonged to 13 of the 16 described serotypes. Thirty isolates (14.4%) belonged to serotype 06, 75 (36%) to serotype 011 and 53 (25.6 %) to other serotypes, 42 (20.2%) were polyagglutinating and eight (3.8 %), autoagglutinating. Twenty-six per cent of isolates were resistant to piperacillin, 9.1% to ceftazidime, 9.6 % to imipenem, 45.7 % to ciprofloxacin, 39.9 % to amikacin, 51 % to gentamicin, 48.6 % to netilmicin and 45.2 % to tobramycin. Antibiotic resistance varied according to serotype and was highest in serotype O11. Sixteen isolates were analysed by PFGE; nine were multiresistant serotype O11 isolates recovered in four hospital units, while seven were susceptible serotype 06 or O11 isolates from a single unit. The multiresistant serotype O11 isolates had two PFGE patterns indicating that they were capable of spreading: one PFGE pattern was shared by the isolates recovered in spring and the other by those recovered in autumn 1997. The seven sus- ceptible 06 and O11 isolates from a single unit had seven different PFGE patterns. Our results have shown that serotype O11 was the most prevalent P aeruginosa serotype in our hospital and that its antibiotic resistance was high. The discriminatory power of serotyping is inadequate to permit the tracing of different strains. Macro-restriction analysis of chromosomal DNA was found to provide the best means of strain discrimination. | |
Deskriptorji | PSEUDOMONAS INFECTIONS PSEUDOMONAS AERUGINOSA SEROTYPING MICROBIAL SENSITIVITY TESTS DRUG RESISTANCE DRUG RESISTANCE, MULTIPLE ANTIBIOTICS HOSPITAL DEPARTMENTS |