Transactions of the Royal Society of Tropical Medicine and Hygiene · 2015
Absence of multidrug resistance in Salmonella enterica serotypes Typhi and Paratyphi A isolates with intermediate susceptibility to ciprofloxacin.
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Misra Richa, Prasad K N, Amrin N, Kapoor P, Singh Swati, Ghar Malay
Аннотация
BACKGROUND: We describe the antimicrobial susceptibility pattern of 64 blood stream isolates of Salmonella enterica serotypes Typhi and Paratyphi A studied from January 2013 to December 2014 at a tertiary care centre in North India.
METHODS: Isolates were identified by standard biochemical reactions and confirmed by slide agglutination using specific antisera. Antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusion method and by E-test.
RESULTS: In this study, 92% (46/50) of Salmonella Typhi and all Paratyphi A (n=14) isolates were susceptible to ampicillin, chloramphenicol and cotrimoxazole. Eighty percent of Typhi (40/50) and 64% (9/14) of Paratyphi A were intermediately susceptible to ciprofloxacin. Nineteen percent (12/64) of isolates were resistant to ciprofloxacin. No resistance to ceftriaxone and azithromycin was detected.
CONCLUSIONS: Our study adds to the current knowledge of world-wide reports of multidrug resistance in S. Typhi.
METHODS: Isolates were identified by standard biochemical reactions and confirmed by slide agglutination using specific antisera. Antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusion method and by E-test.
RESULTS: In this study, 92% (46/50) of Salmonella Typhi and all Paratyphi A (n=14) isolates were susceptible to ampicillin, chloramphenicol and cotrimoxazole. Eighty percent of Typhi (40/50) and 64% (9/14) of Paratyphi A were intermediately susceptible to ciprofloxacin. Nineteen percent (12/64) of isolates were resistant to ciprofloxacin. No resistance to ceftriaxone and azithromycin was detected.
CONCLUSIONS: Our study adds to the current knowledge of world-wide reports of multidrug resistance in S. Typhi.