scholarly journals Antibiotic resistance pattern of Klebsiella pneumoniae in obtained samples from Ziaee Hospital of Ardakan, Yazd, Iran during 2016 to 2017

2020 ◽  
Vol 2 (2) ◽  
pp. 32-36
Author(s):  
Jamshid Ayatollahi ◽  
◽  
Mohammad Sharifyazdi ◽  
Razieh Fadakarfard ◽  
Seyed Hossein Shahcheraghi ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Antibiotic Resistance ◽  
Klebsiella Pneumoniae ◽  
Resistance Pattern ◽  
Inappropriate Use ◽  
Antibiotic Resistance Pattern ◽  
Appropriate Treatment ◽  
Resistance Patterns ◽  
Susceptibility Tests ◽  
Antibiotic Resistance Patterns

Background: In recent years, due to the inappropriate use of antibiotics, drug resistance has increased in gram negative bacilli, including Klebsiella pneumoniae. Drug resistance is associated with an increase in mortality and therapeutic costs. Therefore, determination of an antibiotic resistance pattern for choosing the appropriate treatment for infections caused by this bacterium seems necessary. This study was conducted to determine the antibiotic resistance pattern of Klebsiella pneumoniae species isolated from patients referring to Ziaee Hospital in Ardakan in 2016-2017. Materials and Methods: For this descriptive-analytic study, all positive cultures of Klebsiella pneumoniae in patients referred to Ziaee Hospital in Ardakan during 2016 to 2017, were evaluated. Antibiotic resistance patterns of the samples were determined by the standard method of propagation of the disk from 12 different antibiotics and data analyzed by SPSS 21 software. Results and discussions: The results of this study, which were performed on 75 samples, showed that 22 (29.3%) were male and 53 (70.7%) were female. Klebsiella's resistance to clarithromycin was 100%, but was 100% susceptible to amikacin. The percentage of Klebsiella's resistance to ampicillin was 78.3%, cefalotin 75%, cotrimoxazole 43.9%, ceftriaxone 32%, ciprofloxacin 30.9%, cefotaxime 24%, and ampicillin 20%. The highest sensitivity of Klebsiella pneumoniae for antibiotics was 100% for amikacin, 82.8% for meropenem and 82% for cefepime. Due to the high prevalence of resistance in Klebsiella samples, there is a need for strict measures in the administration of antibiotics. Antibiotic resistance can also be reduced by choosing the appropriate antibiotic for treatment and by taking antibiotic susceptibility tests.

scholarly journals Antibiotic resistance pattern of Klebsiella pneumoniae isolates producing extended spectrum beta-lactamases in Zanjan city, Iran

2020 ◽  
pp. 1-6
Keyword(s):  
Antibiotic Resistance ◽  
Klebsiella Pneumoniae ◽  
Resistance Pattern ◽  
Beta Lactamases ◽  
Antibiotic Resistance Pattern ◽  
Extended Spectrum ◽  
Resistance Patterns ◽  
Extended Spectrum Beta Lactamases ◽  
Antibiotic Resistance Patterns

Extended spectrum beta-lactamases (ESBL) in Klebsiella pneumoniae isolates have led to increased antibiotic resistance and mortality in patients. Therefore, the present study was performed to investigate the susceptibility and antibiotic resistance patterns of ESBL- producing K. pneumoniae strains isolated from patients referred to Zanjan hospitals.

scholarly journals Molecular Analysis of KPC and GES Beta-Lactamase Genes in Clinical Isolates of Klebsiella pneumoniae by PCR Method

2021 ◽  
Vol 8 (2) ◽  
pp. 01-08
Author(s):  
Zohreh Saltanatpour ◽  
Marzieh Saremi ◽  
Leila Saremi ◽  
Sepideh Babaniamansour ◽  
Razieh Nazari
Keyword(s):  
Antibiotic Resistance ◽  
Clinical Samples ◽  
Resistance Pattern ◽  
Klebsiella Pneumonia ◽  
Carbapenem Resistant ◽  
Appropriate Treatment ◽  
Resistance Patterns ◽  
Pcr Method ◽  
Resistant Strains ◽  
Antibiotic Resistance Patterns

Background: Carbapenem-resistant Klebsiella pneumonia (K. pneumoniae) has been recently identified as the major class of pathogens and the treatment became the biggest challenge in this bacterium. We assessed the antibiotic resistance patterns of K. pneumoniae, the frequency of resistant strains to imipenem, meropenem, and ertapenem, and the frequency of K. pneumoniae carbapenemases (KPC), and Guiana-Extended-Spectrum (GES) metallo-β-lactamase genes. Methods: The phenotypes of 200 strains of K. pneumonia, collected from 650 clinical samples, were isolating and identified in Qom, Iran. The antibiotic resistance pattern of the strains was analyzed against different antibiotics. The imipenem, meropenem, and ertapenem-resistant strains, were isolated and the frequency of KPC and GES genes were evaluated. Results: K. pneumoniae strains had different resistance patterns against various antibiotics. The isolated strains with the highest and lowest antibiotic resistance were related to ampicillin, and meropenem, respectively. Investigation of the KPC and GES β lactamase showed that none of 48 imipenem, meropenem, and ertapenem-resistance isolates had the KPC gene. In addition, the GES gene was detected in 3(2.7%) of 110 ceftazidime-resistant specimens. Conclusions: Carbapenem is useful in the treatment of K. pneumoniae infections. Due to the importance of the mechanisms of resistance is by β-lactamase genes, investigating the prevalence of β-lactamase genes can help to increase the necessity of choosing the appropriate treatment for K. pneumoniae.

Molecular characterization and antimicrobial susceptibility patterns of Clostridium difficile strains isolated from hospitals in south-east Scotland

2007 ◽  
Vol 56 (7) ◽  
pp. 921-929 ◽  
Author(s):  
Esvet Mutlu ◽  
Allison J. Wroe ◽  
Karla Sanchez-Hurtado ◽  
Jon S. Brazier ◽  
Ian R. Poxton
Keyword(s):  
Antibiotic Resistance ◽  
Clostridium Difficile ◽  
Restriction Analysis ◽  
Common Type ◽  
Resistance Pattern ◽  
Binary Toxin ◽  
Resistance Patterns ◽  
The Common ◽  
Antibiotic Resistance Patterns ◽  
Susceptibility Patterns

Clostridium difficile isolates (n=149) collected in south-east Scotland between August and October 2005 were typed by four different methods and their susceptibility to seven different antibiotics was determined. The aims were to define the types of strain occurring in this region and to determine whether there were any clonal relationships among them with respect to genotype and antibiotic resistance pattern. Ribotyping revealed that 001 was the most common type (n=113, 75.8 %), followed by ribotype 106 (12 isolates, 8.1 %). The majority of the isolates (96.6 %, n=144) were of toxinotype 0, with two toxinotype V isolates and single isolates of toxinotypes I, IV and XIII. PCR and restriction analysis of the fliC gene from 147 isolates gave two restriction patterns: 145 of pattern VII and two of pattern I. Binary toxin genes were detected in only three isolates: two isolates of ribotype 126, toxinotype V, and one isolate of ribotype 023, toxinotype IV. S-types showed more variation, with 64.5 % (n=40) of the common S-type (4939) and 21 % (n=13) of S-type 4741, with six other S-types (one to three isolates each). All ribotype 001 isolates were of the same S-type (4939), with three isolates of other ribotypes being this S-type. No resistance was found to metronidazole or vancomycin, with resistance to tetracycline only found in 4.3 % of the isolates. A high proportion of isolates were resistant to clindamycin (62.9 %), moxifloxacin, ceftriaxone (both 87.1 %) and erythromycin (94.8 %). Resistance to three antibiotics (erythromycin, clindamycin and ceftriaxone) was seen in 66 isolates, with erythromycin, ceftriaxone and moxifloxacin resistance seen in 96 isolates. Resistance to all four of these antibiotics was found in 62 isolates and resistance to five (the above plus tetracycline) in one isolate: a ribotype 001, toxinotype 0 strain. Whilst ribotype 001 was the most commonly encountered type, there was no evidence of clonal relationships when all other typing and antibiotic resistance patterns were taken into account.

Changing patterns and widening of antibiotic resistance inShigellaspp. over a decade (2000–2011), Andaman Islands, India

2014 ◽  
Vol 143 (3) ◽  
pp. 470-477 ◽  
Author(s):  
D. BHATTACHARYA ◽  
H. BHATTACHARYA ◽  
D. S. SAYI ◽  
A. P. BHARADWAJ ◽  
M. SINGHANIA ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Antibiotic Resistance ◽  
Wide Spectrum ◽  
Resistance Pattern ◽  
Third Generation ◽  
Isolation And Identification ◽  
Antimicrobial Drugs ◽  
Drug Resistance Pattern ◽  
Resistance Patterns ◽  
Third Generation Cephalosporins

SUMMARYThis study is a part of the surveillance study on childhood diarrhoea in the Andaman and Nicobar Islands; here we report the drug resistance pattern of recent isolates ofShigellaspp. (2006–2011) obtained as part of that study and compare it with that ofShigellaisolates obtained earlier during 2000–2005. During 2006–2011, stool samples from paediatric diarrhoea patients were collected and processed for isolation and identification ofShigellaspp. Susceptibility to 22 antimicrobial drugs was tested and minimum inhibitory concentrations were determined for third-generation cephalosporins, quinolones, amoxicillin-clavulanic acid combinations and gentamicin. A wide spectrum of antibiotic resistance was observed in theShigellastrains obtained during 2006–2011. The proportions of resistant strains showed an increase from 2000–2005 to 2006–2011 in 20/22 antibiotics tested. The number of drug resistance patterns increased from 13 in 2000–2005 to 43 in 2006–2011. Resistance to newer generation fluoroquinolones, third-generation cephalosporins and augmentin, which was not observed during 2000–2005, appeared during 2006–2011. The frequency of resistance inShigellaisolates has increased substantially between 2000–2006 and 2006–2011, with a wide spectrum of resistance. At present, the option for antimicrobial therapy in shigellosis in Andaman is limited to a small number of drugs.

Identification of Hemolysin encoding Genes and their Association with Antimicrobial Resistance Pattern among Clinical Isolates of Coagulase-Negative Staphylococci

2019 ◽  
Author(s):  
Mona Nasaj ◽  
Zahra Saeidi ◽  
Babak Asghari ◽  
Ghodratollah Roshanaei ◽  
Mohammad Arabestani
Keyword(s):  
Antibiotic Resistance ◽  
Meca Gene ◽  
Resistance Pattern ◽  
Opportunistic Pathogens ◽  
Significant Issue ◽  
Coagulase Negative Staphylococci ◽  
Factors Associated ◽  
Resistance Patterns ◽  
Antibiotic Resistance Patterns ◽  
Encoding Genes

Abstract Objection : Coagulase-negative staphylococci (CoNS) are considered opportunistic pathogens which capable of producing several toxins, enzymes and also resistance genes. The current study aimed to determine the occurrence of different hemolysins and patterns of antibiotic resistance among CoNS species. Results : The highest frequency of antibiotic resistance was observed against cefoxitin in 49 isolates (53.8%), and the lowest resistance was against novobiocin in 5 isolates (5.5%). None of the isolates were resistant to vancomycin. The prevalence of hla, hla_yidD, hld, and hlb genes were determined as 87.9%, 62.6%, 56%, and 47.3%, respectively. The hla/yidD and hld genes were detected in 69.4% of S. epidermidis and the hla gene in 94.6% of S. haemolyticus ; hlb gene was detected in 53.1% of the S. epidermidis isolates. mecA gene was identified in 50 (55%) of the CoNS isolates. In conclusion, the results of statistical analysis showed that the hld gene had a significant association with resistance to levofloxacin and erythromycin and the hlb with clindamycin resistance. The results of this study showed that there is a significant relationship between hemolysin encoding genes and antibiotic resistance patterns; therefore, detection of virulence factors associated with antibiotic resistance has become a significant issue of concern.

Antibiotic resistance patterns of Pseudomonas spp. isolated from faecal wastes in the environment and contaminated surface water

2020 ◽  
Vol 96 (2) ◽  
Author(s):  
Mathilde Camiade ◽  
Josselin Bodilis ◽  
Naouel Chaftar ◽  
Wassila Riah-Anglet ◽  
Johan Gardères ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Enteric Bacteria ◽  
Resistance Pattern ◽  
Pathogenic Species ◽  
Pseudomonas Species ◽  
Class 1 ◽  
Resistance Patterns ◽  
Faecal Bacteria ◽  
Antibiotic Resistance Patterns

ABSTRACT The Pseudomonas genus, which includes environmental and pathogenic species, is known to present antibiotic resistances, and can receive resistance genes from multi-resistant enteric bacteria released into the environment via faecal rejects. This study was aimed to investigate the resistome of Pseudomonas populations that have been in contact with these faecal bacteria. Thus, faecal discharges originating from human or cattle were sampled (from 12 points and two sampling campaigns) and 41 Pseudomonas species identified (316 isolates studied). The resistance phenotype to 25 antibiotics was determined in all isolates, and we propose a specific antibiotic resistance pattern for 14 species (from 2 to 9 resistances). None showed resistance to aminoglycosides, tetracycline, or polymyxins. Four species carried a very low number of resistances, with none to β-lactams. Interestingly, we observed the absence of the transcriptional activator soxR gene in these four species. No plasmid transfer was highlighted by conjugation assays, and a few class 1 but no class 2 integrons were detected in strains that may have received resistance genes from Enterobacteria. These results imply that the contribution of the Pseudomonas genus to the resistome of an ecosystem first depends on the structure of the Pseudomonas populations, as they may have very different resistance profiles.

scholarly journals Transmission of infectious drug resistance from animals to man

1973 ◽  
Vol 71 (1) ◽  
pp. 209-215 ◽  
Author(s):  
D. M. Wells ◽  
O. B. James
Keyword(s):  
Drug Resistance ◽  
Antibiotic Resistance ◽  
Antibiotic Treatment ◽  
Farm Animals ◽  
Antibiotic Resistant ◽  
R Factor ◽  
Resistance Patterns ◽  
Antibiotic Resistance Patterns ◽  
R Factors

SUMMARYThe antibiotic resistance patterns of coliforms in faecal specimens from pigs and their human contacts were studied. The ability of the resistant coliforms to transfer their resistance in vitro to antibiotic-sensitive recipients was examined. The results showed that pigs which had received antibiotics carried more multiply-resistant, R-factor bearing coliforms than pigs which had not been given antibiotics. Human contacts of the antibiotic-treated pigs had a higher incidence of antibiotic-resistant coliforms with R-factors than human contacts of pigs which had not been given antibiotics. It is concluded that antibiotic treatment of farm, animals may lead to acquisition of antibiotic resistance by gut coliforms of man.

scholarly journals Antibiotic Resistance Patterns and Virulence Determinants of Different SCCmec and Pulsotypes of Staphylococcus Aureus Isolated from a Major Hospital in Ilam, Iran

2017 ◽  
Vol 11 (1) ◽  
pp. 211-223 ◽  
Author(s):  
Mehdi Abbasi ◽  
Majid BaseriSalehi ◽  
Nima Bahador ◽  
Morovat Taherikalani
Keyword(s):  
Antibiotic Resistance ◽  
Antimicrobial Susceptibility ◽  
Public Hospital ◽  
Genetic Relatedness ◽  
Resistance Pattern ◽  
Virulence Determinants ◽  
Different Types ◽  
Resistance Patterns ◽  
Typing Methods ◽  
Antibiotic Resistance Patterns

Aims & Objectives:The aim of this studyisto evaluate genetic relatedness, antibiotic resistance pattern, and virulence characteristics of different types ofS. aureusisolated from air, surfaces, staff, and patients in a Public hospital in Ilam.Methods & Materials:A total of 88 of 140 staphylococci identified asS. aureusby conventional and molecular methods were used in this study. Isolate samples were obtained from surfaces, staff, patients, and hospital indoor air. The sampling from staff and surfaces was done through using swab and air by standard pump. Antimicrobial susceptibility testing and presence different resistant and virulence determinants was assessed. Isolates were then typed by pulsed-field gel electrophoresis (PFGE) and SCCmectyping methods.Results:Out of 88isolates, 36 of them (40.9%) were MRSA. Among MRSA isolates, the range of resistance to antibiotic was 0% in vancomycin to 83.3% in gentamycin. The most prevalent resistant genes among gentamicin resistantS. aureuswereacc (6')/aph (2”)Iaandaph(3”)IIIa. The most common erythromycin resistant gene wasermC. Surprisingly, SCCmectypes I (30.5%), II (25%)were highly distributed. PFGE analysis showed 33 different pulsotypes.Conclusion:This study confirms that different isolates of MSSA and MRSA circulate in Ilam which differ in antimicrobial susceptibility, content of resistance, and virulence determinants.

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