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Spread of Antibiotic-Resistant
Pathogenic Bacteria
in the Hospital and Community:
The Role of German Cockroach
R. Elgaderi...
OBJECTIVES
 To determine what are the pathogenic

bacteria carried by the German cockroach
found in hospitals and the com...
The Culprit
METHODS
 Using standard bacteriological

procedures 253 German cockroaches
collected from 3 hospitals in Tripoli and
150 ...
RESULTS
 Bacteria detected in hospital and

community cockroaches >> Table.
Bacteria isolated from hospital and
community cockroaches
No (%) positive
Organism
Hospital
Community
(n=253)
(n=150)
----...
RESULTS
 Of the 439 Gram-negative organisms

isolated from hospital and community
cockroaches more than 30% were
resistan...
Antimicrobial resistance of Gram-negative
bacilli isolated from hospital and
community cockroaches.
No (%) resistant from:...
RESULTS
 Pseudomonas isolates showed the

highest resistant rates being more than
95% resistant to ampicillin, amoxicilli...
Resistance of Pseudomonas spp isolated
from hospital and community cockroaches
to antibiotics
No. (%) resistant
Antibiotic...
CONCLUSION
 The German cockroach may play an

important role in the spread of antibioticresistant pathogenic bacteria in ...
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Spread of antibiotic resistant pathogenic bacteria in the hospital-Libya

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Transcript of "Spread of antibiotic resistant pathogenic bacteria in the hospital-Libya"

  1. 1. Spread of Antibiotic-Resistant Pathogenic Bacteria in the Hospital and Community: The Role of German Cockroach R. Elgaderi1, K.S. Ghenghesh2 and N. El-Berbash1. Faculty of Science1 and Faculty of Medicine2 Tripoli University, Tripoli-Libya.
  2. 2. OBJECTIVES  To determine what are the pathogenic bacteria carried by the German cockroach found in hospitals and the community?  To determine the resistance profiles of isolated pathogenic bacteria to antimicrobial agents.
  3. 3. The Culprit
  4. 4. METHODS  Using standard bacteriological procedures 253 German cockroaches collected from 3 hospitals in Tripoli and 150 from the community were examined.  Susceptibility to antibiotics was measured by the disc diffusion method.
  5. 5. RESULTS  Bacteria detected in hospital and community cockroaches >> Table.
  6. 6. Bacteria isolated from hospital and community cockroaches No (%) positive Organism Hospital Community (n=253) (n=150) --------------------------------------------------------------------------------Escherichia coli 4 (1.6) 5 (3.4) Klebsiella spp 33 (13.3) 70 (48.3) Enterobacter spp 31 (12.4) 70 (48.3) Citrobacter spp 18 ( 7.2) 22 (15.2) Serratia spp 147 (59.0) 25 (17.2) Proteus spp 3 (1.2) 2 (1.4) Kluyvera spp 6 (2.4) 6 (4.1) Buttiauxlla agrestis 1 (0.4) 1 (0.69) Pseudomonas spp 28 (11.2) 11 (7.6) Aeromonas spp 2 (0.8) 8 (5.5) Gram-negative bacilli 12 (4.7) 0 (0.0) Streptococcus spp 158 (63.5) 102 (70.3)
  7. 7. RESULTS  Of the 439 Gram-negative organisms isolated from hospital and community cockroaches more than 30% were resistant to 3 or more antibiotics.
  8. 8. Antimicrobial resistance of Gram-negative bacilli isolated from hospital and community cockroaches. No (%) resistant from: Antibiotic Hospital Community Total (n=193) (n=246) (n=439) ----------------------------------------------------------------------------------------Ampicillin 141 (73) 208 (85) 349 (80) Amoxicillin86 (45) 88 (36) 174 (40) clavulanic acid Ceftazidime 28 (11) 53 (22) 81 (19) Cephalothin 88 (46) 145 (59) 233 (53) Chloramphenicol 51 (26) 39 (16) 90 (21) Gentamicin 15 (8) 0 (0) 15 (3) Nalidixic acid 36 (19) 19 (8) 55 (13) Nitrofurantoin 89 (46) 53 (22) 142 (32) Ciprofloxacin 0 (0) 1 (0.4) 1 (0.2) Tetracycline 59 (31) 22 (9) 81 (19) Trimethoprim48 (25) 16 (7) 64 (15)
  9. 9. RESULTS  Pseudomonas isolates showed the highest resistant rates being more than 95% resistant to ampicillin, amoxicillinclavulanic acid, cephalothin, chloramphenicol, nalidixic acid, tetracycline, nitrofurantoin, trimethoprim-sulphamethoxazole and all (100%) were susceptible to ciprofloxacin and ceftazidime.
  10. 10. Resistance of Pseudomonas spp isolated from hospital and community cockroaches to antibiotics No. (%) resistant Antibiotic Hospital Community Total (n=34) (n=9) (n=43) ---------------------------------------------------------------------------------------Ampicillin 33 (97) 9 (100) 42 (97) Amoxicillin33 (97) 9 (100) 43 (100) clavulanic acid Ceftazidime 0 (0.0) 0 (0.0) 0 (0.0) Cephalothin 34 (100) 9 (100) 43 (100) Chloramphenicol 33 (97) 9 (100) 42 (97) Gentamicin 4 (12) 0 (0.0) 4 (9.5) Nalidixic acid 34 (100) 9 (100) 43 (100) Nitrofurantoin 34 (100) 9 (100) 43 (100) Ciprofloxacin 0 (0.0) 0 (0.0) 0. (0.0) Tetracycline 32 (94) 9 (100) 41(95.3) Trimethoprim34 (100) 9 (100) 43 (100)
  11. 11. CONCLUSION  The German cockroach may play an important role in the spread of antibioticresistant pathogenic bacteria in the hospital and community.
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