Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/28135
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Type: Journal article
Title: Antimicrobial resistance trends in community-acquired respiratory tract pathogens in the Western Pacific Region and South Africa: report from the SENTRY antimicrobial surveillance program, (1998-1999) including an in vitro evaluation of BMS284756
Author: Bell, J.
Turnidge, J.
Jones, R.
Citation: International Journal of Antimicrobial Agents, 2002; 19(2):125-132
Publisher: Elsevier Science BV
Issue Date: 2002
ISSN: 0924-8579
1872-7913
Abstract: From 1998 to 1999, a large number of community-acquired respiratory tract isolates of Streptococcus pneumoniae (n=566), Haemophilus influenzae (n=513) and Moraxella catarrhalis (n=228) were collected from 15 centres in Australia, Hong Kong, Japan, China, the Philippines, Singapore, South Africa and Taiwan through the SENTRY Antimicrobial Surveillance Program. Isolates were tested against 26 antimicrobial agents using the NCCLS-recommended methods. Overall, 40% of S. pneumoniae isolates were resistant to penicillin with 18% of strains having high-level resistance (MIC > or =2 mg/l). Rates of erythromycin and clindamycin resistance were 41 and 23%, respectively. Penicillin-resistant strains showed high rates of resistance to other antimicrobial agents: 96% to trimethoprim-sulphamethoxazole (TMP-SMX), 84% to tetracycline and 81% to erythromycin. A significant proportion of penicillin-susceptible strains was also resistant to erythromycin (21%), tetracycline (29%) and TMP-SMZ (26%). Small numbers of strains were resistant to levofloxacin (0.7%), trovafloxacin (0.4%) and grepafloxacin (1.3%) where as all strains remained uniformly susceptible to quinupristin/dalfopristin and BMS284756 (MIC(90), 0.06 mg/l), a new desfluoroquinolone. beta-lactamases were, produced by 20% H. influenzae isolates and only rare strains showed intrinsic resistance to amoxycillin. Other beta-lactam agents showed good activity with rates of resistance less than 2% and all isolates showed susceptibility to cefixime, ceftibuten, cefepime and cefotaxime. Rates of resistance to tetracycline and chloramphenicol were also relatively low at 3%. The majority (98%) of M. catarrhalis isolates was found to be beta-lactamase-positive and resistant to penicillins, however, resistance to erythromycin and tetracycline was also low at 1.8%. Both H. influenzae and M. catarrhalis isolates were uniformly susceptible to the new desfluoroquinolone and tested fluoroquinolones.
Keywords: SENTRY Regional Participants Group
Humans
Haemophilus influenzae
Streptococcus pneumoniae
Neisseriaceae Infections
Haemophilus Infections
Pneumococcal Infections
Respiratory Tract Diseases
Indoles
Quinolones
Fluoroquinolones
Anti-Infective Agents
Microbial Sensitivity Tests
Population Surveillance
Prevalence
Drug Resistance, Multiple, Bacterial
South Africa
Asia
Moraxella catarrhalis
DOI: 10.1016/S0924-8579(01)00475-7
Appears in Collections:Aurora harvest 6
Molecular and Biomedical Science publications

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