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Emergence of multidrug-resistant Salmonella enterica serotype Typhi with decreased ciprofloxacin susceptibility in Bangladesh
During 1989–2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim–sulphamethoxazole...
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Published in: | Epidemiology and infection 2006-04, Vol.134 (2), p.433-438 |
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description | During 1989–2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim–sulphamethoxazole); first detected in 1990 (rate of 8%), increased in 1994 (44%), declined in 1996 (22%, P |
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K. ; SHOMA, S. ; RASHID, H. ; SALAM, M. A. ; AHMED, Q. S. ; NAIR, G. B. ; BREIMAN, R. F.</creator><creatorcontrib>RAHMAN, M. ; SIDDIQUE, A. K. ; SHOMA, S. ; RASHID, H. ; SALAM, M. A. ; AHMED, Q. S. ; NAIR, G. B. ; BREIMAN, R. F.</creatorcontrib><description>During 1989–2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim–sulphamethoxazole); first detected in 1990 (rate of 8%), increased in 1994 (44%), declined in 1996 (22%, P<0·01 compared to 1994) and re-emerged in 2001 (36%) and 2002 (42%, P<0·01 compared to 1996). An increased MIC of ciprofloxacin (0·25 μg/ml) indicating decreased susceptibility to ciprofloxacin was detected in 24 (18·2%) out of 132 randomly selected strains during 1990–2002; more frequently in MDR than susceptible strains (46·3% vs. 5·5%, P<0·001), and the proportion of them rose to 47% in 2002 from 8% in 2000 (P<0·01). Ciprofloxacin (5 μg) disk diffusion zone diameters of [les ]24 mm as break-point had 98% sensitivity and 100% specificity when compared with a ciprofloxacin MIC of 0·25 μg/ml as break-point for decreased susceptibility; being a useful and easy screen test. All strains were susceptible to ceftriaxone. The emergence of MDR S. Typhi with decreased ciprofloxacin susceptibility will further complicate the therapy of typhoid fever because of the lack of optimum treatment guidelines.</description><identifier>ISSN: 0950-2688</identifier><identifier>EISSN: 1469-4409</identifier><identifier>DOI: 10.1017/S0950268805004759</identifier><identifier>PMID: 16490150</identifier><identifier>CODEN: EPINEU</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Anti-Infective Agents - pharmacology ; Antimicrobials ; Bacteriology ; Bangladesh - epidemiology ; Biological and medical sciences ; Blood ; Ciprofloxacin - pharmacology ; Disease Outbreaks ; Drug Resistance, Multiple ; Epidemics ; Fundamental and applied biological sciences. Psychology ; Humans ; Infections ; Medical treatment failures ; Microbial Sensitivity Tests ; Microbiology ; Miscellaneous ; Physicians ; Salmonella ; Salmonella enterica ; Salmonella typhi ; Salmonella typhi - drug effects ; Salmonella typhi - pathogenicity ; Typhoid ; Typhoid fever ; Typhoid Fever - drug therapy ; Typhoid Fever - epidemiology</subject><ispartof>Epidemiology and infection, 2006-04, Vol.134 (2), p.433-438</ispartof><rights>2005 Cambridge University Press</rights><rights>Copyright 2006 Cambridge University Press</rights><rights>2006 INIST-CNRS</rights><rights>Cambridge University Press 2005 2005</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c588t-7bbb62263282c12b423ee461bd4a57e2dd0518f2928a13289e99cae51799d30f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3865651$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0950268805004759/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793,58238,58471,72960</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17518719$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16490150$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>RAHMAN, M.</creatorcontrib><creatorcontrib>SIDDIQUE, A. K.</creatorcontrib><creatorcontrib>SHOMA, S.</creatorcontrib><creatorcontrib>RASHID, H.</creatorcontrib><creatorcontrib>SALAM, M. A.</creatorcontrib><creatorcontrib>AHMED, Q. S.</creatorcontrib><creatorcontrib>NAIR, G. B.</creatorcontrib><creatorcontrib>BREIMAN, R. F.</creatorcontrib><title>Emergence of multidrug-resistant Salmonella enterica serotype Typhi with decreased ciprofloxacin susceptibility in Bangladesh</title><title>Epidemiology and infection</title><addtitle>Epidemiol. Infect</addtitle><description>During 1989–2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim–sulphamethoxazole); first detected in 1990 (rate of 8%), increased in 1994 (44%), declined in 1996 (22%, P<0·01 compared to 1994) and re-emerged in 2001 (36%) and 2002 (42%, P<0·01 compared to 1996). An increased MIC of ciprofloxacin (0·25 μg/ml) indicating decreased susceptibility to ciprofloxacin was detected in 24 (18·2%) out of 132 randomly selected strains during 1990–2002; more frequently in MDR than susceptible strains (46·3% vs. 5·5%, P<0·001), and the proportion of them rose to 47% in 2002 from 8% in 2000 (P<0·01). Ciprofloxacin (5 μg) disk diffusion zone diameters of [les ]24 mm as break-point had 98% sensitivity and 100% specificity when compared with a ciprofloxacin MIC of 0·25 μg/ml as break-point for decreased susceptibility; being a useful and easy screen test. All strains were susceptible to ceftriaxone. The emergence of MDR S. Typhi with decreased ciprofloxacin susceptibility will further complicate the therapy of typhoid fever because of the lack of optimum treatment guidelines.</description><subject>Anti-Infective Agents - pharmacology</subject><subject>Antimicrobials</subject><subject>Bacteriology</subject><subject>Bangladesh - epidemiology</subject><subject>Biological and medical sciences</subject><subject>Blood</subject><subject>Ciprofloxacin - pharmacology</subject><subject>Disease Outbreaks</subject><subject>Drug Resistance, Multiple</subject><subject>Epidemics</subject><subject>Fundamental and applied biological sciences. 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K.</au><au>SHOMA, S.</au><au>RASHID, H.</au><au>SALAM, M. A.</au><au>AHMED, Q. S.</au><au>NAIR, G. B.</au><au>BREIMAN, R. F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Emergence of multidrug-resistant Salmonella enterica serotype Typhi with decreased ciprofloxacin susceptibility in Bangladesh</atitle><jtitle>Epidemiology and infection</jtitle><addtitle>Epidemiol. Infect</addtitle><date>2006-04-01</date><risdate>2006</risdate><volume>134</volume><issue>2</issue><spage>433</spage><epage>438</epage><pages>433-438</pages><issn>0950-2688</issn><eissn>1469-4409</eissn><coden>EPINEU</coden><abstract>During 1989–2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim–sulphamethoxazole); first detected in 1990 (rate of 8%), increased in 1994 (44%), declined in 1996 (22%, P<0·01 compared to 1994) and re-emerged in 2001 (36%) and 2002 (42%, P<0·01 compared to 1996). An increased MIC of ciprofloxacin (0·25 μg/ml) indicating decreased susceptibility to ciprofloxacin was detected in 24 (18·2%) out of 132 randomly selected strains during 1990–2002; more frequently in MDR than susceptible strains (46·3% vs. 5·5%, P<0·001), and the proportion of them rose to 47% in 2002 from 8% in 2000 (P<0·01). Ciprofloxacin (5 μg) disk diffusion zone diameters of [les ]24 mm as break-point had 98% sensitivity and 100% specificity when compared with a ciprofloxacin MIC of 0·25 μg/ml as break-point for decreased susceptibility; being a useful and easy screen test. All strains were susceptible to ceftriaxone. The emergence of MDR S. 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subjects | Anti-Infective Agents - pharmacology Antimicrobials Bacteriology Bangladesh - epidemiology Biological and medical sciences Blood Ciprofloxacin - pharmacology Disease Outbreaks Drug Resistance, Multiple Epidemics Fundamental and applied biological sciences. Psychology Humans Infections Medical treatment failures Microbial Sensitivity Tests Microbiology Miscellaneous Physicians Salmonella Salmonella enterica Salmonella typhi Salmonella typhi - drug effects Salmonella typhi - pathogenicity Typhoid Typhoid fever Typhoid Fever - drug therapy Typhoid Fever - epidemiology |
title | Emergence of multidrug-resistant Salmonella enterica serotype Typhi with decreased ciprofloxacin susceptibility in Bangladesh |
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