Antimicrobial Resistance Pattern and Plasmid Profile of Salmonella typhi Isolated from an Outbreak in Tehran Province

1997 ◽  
Vol 29 (3) ◽  
pp. 265-269 ◽  
Author(s):  
Ahmad R. Bahrmand ◽  
Ali A. Velayati
Keyword(s):  
Antimicrobial Resistance ◽  
Salmonella Typhi ◽  
Plasmid Profile ◽  
Resistance Pattern ◽  
Tehran Province

scholarly journals Is Antimicrobial Resistance Pattern of Enteric Fever Changing in Kathmandu Valley?

2013 ◽  
Vol 32 (3) ◽  
pp. 221-228
Author(s):  
Ganesh Kumar Rai ◽  
Subhana Karki ◽  
Bina Prajapati
Keyword(s):  
Antimicrobial Resistance ◽  
Nalidixic Acid ◽  
Enteric Fever ◽  
Public Health Problem ◽  
Salmonella Typhi ◽  
Resistance Pattern ◽  
Kathmandu Valley ◽  
Sensitivity Testing ◽  
Antimicrobial Sensitivity ◽  
Sensitivity Pattern

Introduction: Enteric fever is a public health problem in developing countries including Nepal. Antimicrobial sensitivity pattern of Salmonella sp causing enteric fever is changing over time and also differs according to geographical location. Periodic surveillance of antimicrobial resistance of Salmonella sp is mandatory for management of enteric fever rationally. The objective of this study was to analyze the resistance pattern of Salmonella sp to commonly used antimicrobials. Materials and Methods: This was a retrospective study undertaken reviewing the records of blood isolates of Salmonella sp over one year period at Kanti Children’s Hospital, Nepal. Antimicrobial sensitivity testing was done following Kirby Bauer’s disk diffusion technique using Muller Hinton agar. Results: Salmonella typhi was found to be 100% resistance to ampicillin and resistance to nalidixic acid and ciprofloxacin was also high. The resistance to chloramphenicol and ofloxacin was low. No resistance was found to amoxicillin, ceftriaxone, cefotaxime and amikacin. However, among the sensitive isolates of Salmonella typhi intermediate sensitivity to ceftriaxone and ceftazidime was reported to be high. Among the isolates of S paratyphi A, the resistance to nalidixic acid was 100% followed by 75% to ciprofloxacin. No resistance was found to chloramphenicol, ceftriaxone, cefixime, amikacin and low resistance to amoxicillin and ofloxacin. Among the sensitive isolates of S paratyphi A, majority of them were only moderately sensitive to cefotaxime and ceftazidime and about 1/3 of the organisms had only intermediate sensitivity to ceftriaxone. Conclusiion: Commonly used parenteral third generation cephalosporins, first line drugs like chloramphenicol and amoxicillin and ofloxacin among fluoroquinolones were found to be effective in vitro in treating enteric fever. However, Salmonella typhi was found to be highly resistant to the most frequently used drugs like ciprofloxacin and cefixime and Salmonella paratyphi A to ciprofloxacin. A comparative chart of antimicrobial sensitivity of enteric fever in children over 10 year period from different hospitals of Kathmandu valley is also presented in the study. DOI: http://dx.doi.org/10.3126/jnps.v32i3.6625 J. Nepal Paediatr. SocVol.32(3) 2012 221-228

scholarly journals A study on Antimicrobial Resistance: recent trend in Armed Forces of Bangladesh

2015 ◽  
Vol 9 (2) ◽  
pp. 03-09
Author(s):  
Md Abul Kalam Azad ◽  
Zaheedur Rahman ◽  
Md Nurul Amin
Keyword(s):  
Antimicrobial Resistance ◽  
Recent Trend ◽  
Throat Swab ◽  
Multiple Drug Resistance ◽  
Armed Forces ◽  
Salmonella Typhi ◽  
Resistance Pattern ◽  
Multiple Drug ◽  
Medical College ◽  
Developed Nations

Introduction: Antimicrobial resistance has increased dramatically & to be a serious threat to the treatment of infectious disease on a global basis. As a result morbidity, mortality & economic burden of infections with multiple drug resistance organisms for which there are no effective therapies. Over use of antibiotics in developed nations of paradoxically both misuses of under use in developing nations have contributed to the burden. Objectives: The objective of the study is to identify common microorganisms and to assess their sensitivity to three selected antibiotics. Methods: This observational study was conducted in Armed Forces Institute of Pathology (AFIP), Dhaka, Bangladesh among samples of urine, blood, pus, sputum and throat swab. All of the samples of urine (173), Blood (31), pus (63), sputum (28) and throat swab (14) were tested for culture and sensitivity at AFIP over a period from January 2012 to February 2013. Selected antibiotics were ciprofloxacin, cephradine and cefixime. Results: Commonest organisms found in different samples were Escherichia coli in urine (57.8%), Salmonella typhi in blood (54.8%), Staphylococcus aureus in pus (42.9%), klebsiella in sputum (67.9%) and Streptococcus pyogens in throat swab 03 JAFMC Bangladesh. Vol 9, No 2 (December) 2013 (78.6%). In urine samples, microorganisms were found resistant to cephradine in 95% cases but sensitive to cefixime in 30.4% cases. Microorganisms in blood samples were sensitive to cefixime in 83.3% and Ciprofloxacin in 80.6% cases. Ciprofloxacin, cephradin and cefixime all three antibiotics encountered resistance in 63.5%, 82.5% and 75.8% samples of pus respectively. Among sputum samples organisms were sensitive to ciprofloxacin in 71.4% and cefixime in 64.3% cases whereas resistant to cephradin in 92.9% cases. In organisms of throat swab Cephradine Showed sensitivity in 71.4% cases but cefixime encountered resistance in 57.1% cases. Conclusion: The study reveals an alarming picture of antimicrobial resistance pattern in Bangladesh Armed Forces. DOI: http://dx.doi.org/10.3329/jafmc.v9i2.21818 Journal of Armed Forces Medical College Bangladesh Vol.9(2) 2013

scholarly journals Epidemiology of Typhoid and Paratyphoid Fever in Kathmandu : Two Years Study and Trends of Antimicrobial Resistance

2005 ◽  
Vol 44 (157) ◽  
Author(s):  
S Malla ◽  
P Kansakar ◽  
Serichantalergs Serichantalergs ◽  
M Rahman ◽  
S Basnet
Keyword(s):  
Antimicrobial Resistance ◽  
Enteric Fever ◽  
Tetracycline Resistance ◽  
Salmonella Typhi ◽  
Multidrug Resistant ◽  
Resistance Pattern ◽  
Drug Resistant ◽  
Diffusion Technique ◽  
Plasmid Analysis ◽  
Paratyphoid Fever

Enteric fever is prevalent in developing countries including Nepal, where it still remains as a major healthproblem. Appropriate antibiotics are essential for the treatment of typhoid and paratyphoid fever. Aprospective study was carried out to characterize the epidemiological features of enteric fever in Kathmandu,Nepal and to analyse the recent trend of antimicrobial resistance pattern of the Salmonella isolated from thecases of enteric fever from different hospitals in Kathmandu during June, 2002 to June, 2004. A total of 1469Salmonella typhi and Salmonella paratyphi ‘A’ isolates collected during this period from five different hospitallaboratories situated in Kathmandu were studied. The antimicrobial susceptibilities of the isolates towardsAmpicillin (10mcg), Chloramphenicol (30mcg), Cotrimoxazole (25mcg), Ciprofloxacin (5mcg) and Ceftriaxone(5mcg) were determined by standard disc diffusion technique and Agar dilution technique were used todetermine the minimum inhibitory concentration (MIC) for Ampicillin, Ciprofloxacin, Chloramphenicoland Ceftriaxone. All the isolates tested were found to be sensitive to Ceftriaxone and Ciprofloxacin, the mostcommonly used antibiotic for treatment of enteric fever in Nepal. Of the total isolates studied, 15.5% from2002, 8% from 2003 and 3.45% from 2004 were found to be multidrug resistant (exhibiting resistance towardsAmpicillin, Chloramphenicol and Cotrimoxazole). Of the total multi drug resistant Salmonella isolates, 92%were Salmonella typhi. All the multidrug resistant isolates were also further tested for susceptibilities towardsTetracycline (30mcg), Nalidixic acid (30 mcg), Streptomycin (10units), Gentamycin (25mcg), Azithromycin(15mcg), Kanamycin (30mcg), Neomycin (30mcg). 50% of the multi drug resistant Salmonella typhi werealso resistant to Tetracycline. Plasmid analysis revealed that all of the Mutidrug resistant Salmonella typhiisolates with Tetracycline resistance harbored a large molecular weight (147 Kb) plasmid.Key Words: Enteric fever, Salmonella, Antibiotic, Plasmid, Multidrugresistant

scholarly journals Trends in Epidemiology, Susceptibility Pattern and Serotypes of Salmonellae at a Tertiary Care Hospital, India: An Eight-Year Study (2011 – 2018)

2019 ◽  
pp. 1-6
Author(s):  
Swati Mudshingkar ◽  
Meghna Palewar ◽  
Vaishali Kongre ◽  
Anju Kagal ◽  
Renu Bhardwaj ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Enteric Fever ◽  
Tertiary Care ◽  
Salmonella Typhi ◽  
Etiological Agent ◽  
Resistance Pattern ◽  
Central Research ◽  
Care Hospital ◽  
Susceptibility Pattern ◽  
Paratyphi B

Background: Enteric fever is a global disease. In India, Enteric fever is endemic with Salmonella enterica serovar typhi being the predominant etiological agent. Due to changing antimicrobial resistance patterns, knowledge of local epidemiology, antimicrobial resistance pattern helps in the initiation of appropriate empiric therapy. Methodology: A prospective study on Salmonellae isolated from blood and stool specimens over an 8 year period was conducted. Antimicrobial susceptibility was done as per The Clinical & Laboratory Standards Institute (CLSI) guidelines. Serotyping was done by using commercial antisera and later confirmed at Central Research Institute, Kasauli. Results: Out of 52 salmonellae, 43 (82.6%) were from blood and 8 (15.3%) from stool and 1 (1.9%) from pus specimen. We observed a change in spectrum and susceptibility pattern of salmonellae the 8 year study period. In 2011, 2013, 2016 and 2018, Salmonella typhi (serotype-9,12,vi:d:-) was the predominant etiological agent accounting for 81.8% , 66.6%, 51% and 80% of the total cases of salmonella respectively. Salmonella Paratyphi B (4,12:b:1,2) was predominant in 2012 (100% of cases). Salmonella Serotype Typhimurium (4,12;i:1,2) was predominant in 2014 (50%) while Salmonella typhi and S. paratyphi B contributed equally to infections in 2015 (40% each). From 2011, Non-typhoidal salmonellae (NTS) steadily increased. 19 (36.6%).The most effective antimicrobials against typhoidal salmonellae were chloramphenicol, ceftriaxone and co-trimoxazole with all most 100% sensitivity from 2011 to 2018. Ciprofloxacin maintained good sensitivity in 2013, 2014 and 2015, 2016 and 2018 but ampicillin was ineffective in our set-up. Conclusions: Due to changing trends in spectrum and sensitivity of salmonellae, continuous monitoring is essential.

Incidence and antimicrobial resistance pattern of some clinical isolate of Salmonella typhi in Akwanga, Nasarawa state, Nigeria

2013 ◽  
Vol 4 (1) ◽  
pp. 33-36
Author(s):  
Akyala A. Ishaku ◽  
Manasseh Katsa ◽  
Haruna Yakubu ◽  
Tanimu Habibu ◽  
Ashefo Daniel ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Clinical Isolate ◽  
Salmonella Typhi ◽  
Resistance Pattern
Sign in / Sign up

Export Citation Format

Share Document