scholarly journals Antimicrobial Resistance of Listeria monocytogenes Strains Isolated from Humans, Animals, and Food Products in Russia in 1950–1980, 2000–2005, and 2018–2021

Antibiotics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1206
Author(s):  
Pavel A. Andriyanov ◽  
Pavel A. Zhurilov ◽  
Elena A. Liskova ◽  
Tatyana I. Karpova ◽  
Elena V. Sokolova ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Temporal Evolution ◽  
Penicillin G ◽  
Diffusion Method ◽  
Multiple Antibiotic Resistance ◽  
Disk Diffusion Method ◽  
Amoxicillin Clavulanic Acid ◽  
Evolution Of Resistance ◽  
Resistant Strains ◽  
Time Periods

Susceptibility of 117 L. monocytogenes strains isolated during three time periods (1950–1980; 2000–2005, and 2018–2021) to 23 antibiotics was tested by the disk diffusion method. All strains were sensitive to aminoglycosides (gentamicin, kanamycin, neomycin, streptomycin), glycopeptides (vancomycin and teicoplanin), clarithromycin, levofloxacin, amoxicillin/clavulanic acid, and trimethoprim/sulfamethoxazole. Resistance to clindamycin was observed in 35.5% of strains. Resistance to carbapenems, imipenem and meropenem was found in 4% and 5% of strains, respectively. Resistance to erythromycin, penicillin G, trimethoprim, and ciprofloxacin was found in 4%, 3%, 3%, and 2.5% of strains, respectively. Resistance to tylosin, ampicillin, enrofloxacin, linezolid, chloramphenicol, and tetracycline was found in less than 2%. Three strains with multiple antibiotic resistance and 12 strains with resistance to two antibiotics were revealed. Comparison of strains isolated in different time periods showed that the percentage of resistant strains was the lowest among strains isolated before 1980, and no strains with multiple antibiotic resistance were found among them. Statistical analysis demonstrated that the temporal evolution of resistance in L. monocytogenes has an antibiotic-specific character. While resistance to some antibiotics such as ampicillin and penicillin G has gradually decreased in the population, resistance to other antibiotics acquired by particular strains in recent years has not been accompanied by changes in resistance of other strains.

Prevalence, Antibiogram, and cdt Genes of Toxigenic Campylobacter jejuni in Salad Style Vegetables (Ulam) at Farms and Retail Outlets in Terengganu

2015 ◽  
Vol 78 (1) ◽  
pp. 65-71 ◽  
Author(s):  
MOHD IKHSAN KHALID ◽  
JOHN YEW HUAT TANG ◽  
NABILA HUDA BAHARUDDIN ◽  
NASIHA SHAKINA RAHMAN ◽  
NURUL FAIZZAH RAHIMI ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Multiplex Pcr ◽  
Campylobacter Jejuni ◽  
Antibiotic Susceptibility ◽  
Penicillin G ◽  
Diffusion Method ◽  
Cytolethal Distending Toxin ◽  
Disk Diffusion Method ◽  
Retail Outlets ◽  
Pcr Method

The present study was conducted to investigate the prevalence and antibiotic resistance among Campylobacter jejuni in ulam at farms and retail outlets located in Kuala Terengganu, Malaysia. A total of 526 samples (ulam, soil, and fertilizer) were investigated for the presence of C. jejuni and the gene for cytolethal distending toxin (cdt) by using a multiplex PCR method. Antibiotic susceptibility to 10 types of antibiotics was determined using the disk diffusion method for 33 C. jejuni isolates. The average prevalence of contaminated samples from farms, wet markets, and supermarkets was 35.29, 52.66, and 69.88%, respectively. The cdt gene was not detected in 24 of the 33 C. jejuni isolates, but 9 isolates harbored cdtC. Antibiotic resistance in C. jejuni isolates was highest to penicillin G (96.97% of isolates) followed by vancomycin (87.88%), ampicillin (75.76%), erythromycin (60.61%), tetracycline (9.09%), amikacin (6.06%), and norfloxacin (3.03%); none of the isolates were resistant to ciprofloxacin, enrofloxacin, and gentamicin. In this study, C. jejuni was present in ulam, and some isolates were highly resistant to some antibiotics but not to quinolones. Thus, appropriate attention and measures are required to prevent C. jejuni contamination on farms and at retail outlets.

Antibiotic Resistance of Enterobacteriaceae Isolated from Fresh Fruits and Vegetables and Characterization of their AmpC β-Lactamases

2019 ◽  
Vol 82 (11) ◽  
pp. 1857-1863 ◽  
Author(s):  
ZAHRA S. AL-KHAROUSI ◽  
NEJIB GUIZANI ◽  
ABDULLAH M. AL-SADI ◽  
ISMAIL M. AL-BULUSHI
Keyword(s):  
Antibiotic Resistance ◽  
Fruits And Vegetables ◽  
Multidrug Resistant ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Disk Diffusion Method ◽  
Antibiotic Resistant ◽  
Amoxicillin Clavulanic Acid ◽  
Clinically Significant ◽  
Enterobacter Asburiae

ABSTRACT Enterobacteria may gain antibiotic resistance and be potent pathogens wherever they are present, including in fresh fruits and vegetables. This study tested the antibiotic resistance of enterobacteria isolated from 13 types of local and imported fresh fruits and vegetables (n = 105), using the standard Kirby-Bauer disk diffusion method. Phenotypic and genotypic characterizations of AmpC β-lactamases were determined in cefoxitin-resistant isolates. Ten percent of the enterobacteria tested (n = 88) were pansusceptible, 74% were resistant to at least one antibiotic, and 16% were multidrug resistant. Enterobacteria isolates showed the highest antibiotic resistance against ampicillin (66%), cephalothin (57%), amoxicillin–clavulanic acid (33%), cefoxitin (31%), tetracycline (9%), nalidixic acid (7%), trimethoprim (6%), and kanamycin (5%). Three isolates showed intermediate resistance to the clinically important antibiotic imipenem. Escherichia coli isolated from lettuce exhibited multidrug resistance against five antibiotics. Fifteen isolates were confirmed to have AmpC β-lactamase, using the inhibitor-based test and the antagonism test; the latter test confirmed that the enzyme was an inducible type. Four types of ampC β-lactamase genes (CIT, EBC, FOX, and MOX) were detected in eight isolates: four Enterobacter cloacae isolates and one isolate each of Citrobacter freundii, Enterobacter asburiae, Enterobacter hormaechei, and Enterobacter ludwigii. It was concluded that fresh fruits and vegetables might play a role as a source or vehicle for transferring antibiotic-resistant bacteria that might spread to other countries through exportation. The clinically significant AmpC β-lactamase was rarely documented in the literature on bacteria isolated from fruits and vegetables, and to our knowledge, this is the first report on the detection of an inducible type in such commodities.

scholarly journals Dinamic of resistance to antibiotics for the most frequent potential pathogen bacterial isolates in “Dr. V. Babes” Clinical Hospital of Infectious and Tropical Diseases (2000-2015)

2016 ◽  
Vol 19 (2) ◽  
pp. 78-89
Author(s):  
M. Nica ◽  
◽  
T. Biolan ◽  
E. Turcu ◽  
A. Dascălu ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Bacterial Species ◽  
Test Methods ◽  
Penicillin G ◽  
Diffusion Method ◽  
Internal Quality ◽  
Tropical Diseases ◽  
Dna And Rna ◽  
Potential Pathogen ◽  
Resistant Strains

Objective. Analyzing the dynamycs of global antibiotic resistance of some bacterial species isolated from patients admitted to the „Dr. V. Babes” Hospital for Infectious and Tropical Diseases, between the years 2000 to 2015. Material and methods. Antibiotic resistance profiles of bacteria isolated from inpatients, were identified by the standard diffusion method and MIC values by VITEK2C and E-test methods. (CLSI and EUCAST standards). Screening of carbapenemases – producing isolates were performed by phenotipic methods, and the confirmation by RealTimePCR: “MasterPure™ Complete DNA and RNA Purification Kit” (Epicentre), „Primer Design™ Kit” (blaOXA48; blaKPC, blaNDM, blaVIM)/ LightScanner 32 Instrument/LS32 (Idaho Technology), and GeneXpert. Internal quality control: Staphylococcus aureus ATCC29213, Streptococcus pneumoniae ATCC49619, E. coli ATCC25922, Pseudomonas aeruginosa ATCC27853. Results. The incidence of St. aureus meticilino-rezistent (MRSA) highlights an increase from 12.2% (2002) to 40.4% (2015). In the past 3 years SVB microbiology lab found a sharp increase in the incidence of erytromycin resistant strains of Streptococcus pyogenes. In 2015 we registered 20.3% of macrolide resistant strains. Global resistance to penicillin G for Str. pneumoniae (non-meningeal infections) was 45.3%- 54.5% until 2009, and 2.7% in 2013. Enterococcus faecium strains showed 0% resistance to vancomycin between 2000 and 2012. A significant growth was recorded in 2015 of 11%. Isolation rate of Klebsiella pneumoniae ESBL producing strains has increasewd progressively from 17.6 in 2000 to 57% in 2015. Carbapenems – resistant K. pneumoniae isolated strains were 18,8% in 2015. Carbapenemases types identified by phenotypic and genetic methods where: 35/ Oxa48, 8 KPC and 21/MBL (NDM-1). Resistance to carbapenems recorded an upward trend: 23.9% in 2004 to 37.9% in 2015, and for Acinetobacter baumannii 69%. Conclusions. Antibiotic resistance of bacteria is a major challenge for public healts. Therapeutic solutions are extremely limited.

scholarly journals Prevalence of Klebsiella pneumoniae in surgical practice and laboratory dog husbandry room environments at Rajamangala University of Technology Tawan-ok Veterinary Hospital

2020 ◽  
Vol 19 (2) ◽  
pp. 269-276
Author(s):  
Kulchai Nakbubpa ◽  
◽  
Kunyavee phattanakitjumroon ◽  
Thitichaya Chukiatsiri ◽  
Krittamet Rommaneeyachitto ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Klebsiella Pneumoniae ◽  
Penicillin G ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Antibiotic Resistant ◽  
Surgical Practice ◽  
Total Prevalence ◽  
University Of Technology ◽  
Secondary Infections

Klebsiella pneumoniae is commonly found in environments, causing secondary infections in both human and animals, as well as antibiotic resistance problem. The objective of this study was to determine the prevalence of K. pneumoniae contaminated in the environments of surgical practice and laboratory dog husbandry rooms at Animal hospital, Rajamangala University of Technology Tawan-ok during 2019 - 2020. Two-hundred-swabbed samples were collected from these nearby environments and laboratory dogs themselves. Then, all samples were tested for K. pneumoniae and antibiotic susceptibility using disk diffusion method. From the results, the total prevalence was 3.5% and the high frequencies were found in three categories: laboratory dogs (35.7%), veterinarian belongings (3.3%) and building structure (2.5%). The antibiotic resistance was also detected including Cephalexin, Ceftazidime and Penicillin G (100%), Gentamicin and Colistin (85.71%), Amikacin (42.86%), and Ciprofloxacin (14.29%). Owning to the fact that laboratory dogs exposed to an external environment leading to bacterial contamination into themself and the husbandry room. Therefore, the hygiene of laboratory dogs and area in husbandry room should be primarily considered. Our study would be the preliminary baseline for the study of antibiotic resistant K. pneumoniae contamination in dogs, human, and their environments.

scholarly journals Antibiotic Resistance in Staphylococcus aureus in Patients Hospitalized in Imam Reza Hospital of Kermanshah, Iran (2016 - 2018)

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Mohammad Hossein Zamanian ◽  
Marya Shirvani ◽  
Alireza Janbakhsh ◽  
Babak Sayad ◽  
Siavash Vaziri ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Opportunistic Pathogen ◽  
Cross Sectional Study ◽  
Penicillin G ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Cross Sectional ◽  
Healthcare Settings ◽  
Wide Range

Background: Staphylococcus aureus is an opportunistic pathogen, which often causes asymptomatic diseases. This bacterium could cause several disorders, ranging from skin infections to life-threatening diseases. S. aureus could also develop resistance to a wide range of antibiotics. Objectives: The present study aimed to investigate the prevalence and pattern of antibiotic resistance in isolated S. aureus in Imam Reza Hospital of Kermanshah, Iran. Methods: This descriptive cross-sectional study was conducted on 2,228 patients with a positive S. aureus culture who were admitted to Imam Reza Hospital during 2016 - 2018. In accordance with the CLSI protocol, bacterial isolates were separated using laboratory tests, and antibiotic susceptibility was assessed using the standard disk-diffusion method. Data analysis was performed in SPSS version 24. Results: Most of the S. aureus-positive cases were isolated from the emergency ward (43.7%), blood samples (40.1%), and urine samples (23.9%). The highest antibiotic resistance was observed against erythromycin, penicillin G, ofloxacin, cefoxitin, clindamycin, and piperacillin. With 93.3% and 81.8% sensitivity, vancomycin and teicoplanin were respectively the most effective antibiotics against S. aureus. Conclusions: According to the results, the prevalence of resistant S. aureus strains could be due to the long-term hospitalization of patients and the overuse of antibiotics in infection treatment. Therefore, proper monitoring and development of effective infection control methods are essential in these healthcare settings.

scholarly journals Antibiotic resistance – a new challenge of modern urology

2020 ◽  
Vol 13 (5) ◽  
pp. 113-119
Author(s):  
S.V. Kotov ◽  
◽  
S.A. Pulbere ◽  
S.V. Belomyttsev ◽  
R.A. Perov ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Antibiotic Therapy ◽  
Bacterial Resistance ◽  
Diffusion Method ◽  
Klebsiella Pneumonia ◽  
Disk Diffusion Method ◽  
Antibacterial Drugs ◽  
Clinical Hospital ◽  
Resistant Strains ◽  
Tract Infections

Introduction. Analyze of the incidence and resistance to antibacterial drugs to microorganisms isolated in urine cultures of patients with urinary tract infections (UTI) from 2012 to 2019. Materials and methods. In the clinic of urology clinical hospital № 1 named after N.I. Pirogov and in the city clinical hospital № 29 named after N.E. Bauman was analyzed the results of 6083 urine cultures in 5027 patients. The traditional standardized inoculation was carried out with a 10 μl loop on the following nutrient media: agar with the addition of 5% sheep blood (Pronadisa, Spain), Levin agar (Pronadisa, Spain), Biggie agar (BD, USA), followed by incubation at 37°C for 18-24 hours. Next, a visual colony count was performed. The sensitivity of the isolated microorganisms to antibiotics was evaluated using a Phoenix bacteriological analyzer (BD, USA) and a disk diffusion method production discs (BD, USA). ESBL producers and carbapenemases were evaluated using a Phoenix bacteriological analyzer (BD, USA) using the double disc method, by the method of inactivation of carbapenems. Results. A high level of resistance among Enterococcus faecalis strains to fluoroquinolones (> 20%) and aminoglycosides (> 35%) was revealed. Among the strains of Escherichia coli, an increase in resistance to the antibacterial group of penicillins (> 80%) was noted, at the same time, an increase in resistance to drugs of the cephalosporins group (> 60%), fluoroquinolones (> 50%) was observed. The appearance of carbapenem-resistant strains is noted. Among the strains of Klebsiella pneumonia, high resistance to fluoroquinolones (> 50%) and cephalosporins (> 45%) was found. A sharp increase in resistance to all used antibacterial drugs is noted. Separately, increase in resistance to carbapenems (27,1%) can be noted. Discussion. According to the results of our study, it can be argued that the most common causative agents of complicated UTI in 2019 were representatives of the Enterococcaceae and Enterobacteriaceaes, there is an increase in the number of strains resistant to certain groups of antibacterial drugs. When comparing the results obtained with the data of the Internet platform «Map of antibiotic resistance. AMR map» shows comparable data on the occurrence and resistance of microorganisms. Of particular concern is the high frequency of bacterial resistance to drugs of the fluoroquinolone group and, therefore, these drugs cannot be used as empirical therapy for patients with complicated UTI. Conclusions. Adhering to the strategy of rational antibiotic therapy, further studying of the problem of antibiotic resistance, identification of resistant strains, monitoring of the of antibacterial drugs prescription at the outpatient stage and in the hospital are necessary. It is necessary to study the epidemiological data and the results of susceptibility to antibiotics in a particular region, this will help us to more accurately select antibiotic therapy and introduce accelerated laboratory diagnosis of bacteria resistance markers into practice.

scholarly journals Clinical and bacteriological examinations of dogs with tonsillitis

2020 ◽  
Vol 23 (2) ◽  
pp. 229-236
Author(s):  
D. Sylejmani ◽  
I. Miftari ◽  
A. Hamidi ◽  
A. Robaj
Keyword(s):  
Antimicrobial Susceptibility ◽  
Clinical Signs ◽  
Penicillin G ◽  
Diffusion Method ◽  
Biochemical Tests ◽  
Isolation And Identification ◽  
Disk Diffusion Method ◽  
Staphylococcus Intermedius ◽  
Microbiological Methods ◽  
Amoxicillin Clavulanic Acid

The aim of this study was to investigate the presence of tonsillitis in dogs and isolation of bacteria involved as well as their antimicrobial susceptibility. For this purpose from June 2015 to August 2017, 12 clinical cases of dogs with tonsillitis have been examined, and a total of 24 samples were collected. Diagnosis was based on anamnesis, clinical signs, haematology and biochemical tests and bacteriological analyses. The isolation and identification of bacteria was carried out according to conventional microbiological methods and biochemical tests, while the antimicrobial susceptibility of bacterial isolates was tested using the disk diffusion method. Escherichia coli was the most commonly isolated bacteria with isolation rate 35.0%, followed by Streptococcus pyogenes (27.50%), Staphylococcus aureus (20%), Staphylococcus intermedius (10%) and Pasteurella spp. (7.5%). A high resistance to ampicillin, streptomicin and penicillin G was shown by E. coli, S. intermedius, S. pyogenes isolates. None of S. pyogenes, S. aureus, S. intermedius and Pasteurella spp., isolates was resistant to amoxicillin/clavulanic acid.

scholarly journals Comparison of antibiotic resistance pattern among Enteropathogenic bacteria isolated from broiler and backyard chicken meat

2019 ◽  
Vol 44 (2) ◽  
pp. 228
Author(s):  
R. Yulistiani ◽  
D. Praseptiangga ◽  
S. Supyani ◽  
S. Sudibya
Keyword(s):  
Antibiotic Resistance ◽  
Multidrug Resistant ◽  
Chicken Meat ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Salmonella Spp ◽  
Disk Diffusion Method ◽  
Broiler Meat ◽  
Resistant Strains ◽  
Backyard Chicken

This study aimed to compare the antibiotic resistance patterns among original Enterobacteriaceae isolates from broiler and backyard chicken meats in Surabaya, Indonesia, isolated in 2016-2017. The Kirby–Bauer disk diffusion method was used to determine the resistance of these isolates against tetracycline (TE), gentamicin (CN), cefoxitin (FOX), sulfamethoxazole-trimethoprim (SXT), nalidixic acid (NA), and chloramphenicol (C). Both broiler and backyard chicken meat isolates were resistant to the six antibiotics tested. Overall, broiler meat isolates which resistant to TE, CN, FOX, SXT, NA, C were 57.76% higher than backyard chicken meat isolates. More than 50% of broiler meat isolates (304 samples) were resistant to TE and NA, whereas backyard chicken meat isolates (310 samples) were only resistant to TE. The resistant strains found in both meat isolates were Salmonella spp., Escherichiacoli, Shigella spp., Citrobacter spp., Klebsiella spp., Yersinia spp., Proteus spp., Enterobacter spp., Serratia spp., and Edwardsiella spp. Resistant strains of broiler meat isolates were significantly higher (P<0.05) than backyard chicken meat isolates, except Edwardsiella spp. Overall, multidrug-resistant Enterobacteriaceae was found to be higher in broiler meat isolates than in backyard chicken meat isolates. Broiler and backyard chicken meats are potential reservoirs of multidrug-resistant Enterobacteriaceae which threat to public health.

scholarly journals Antibiotic resistance of Staphylococcus aureus isolated from raw cow and goat milk produced in the Tiaret and Souk Ahras areas of Algeria

2021 ◽  
pp. 1929-1934
Author(s):  
Sofiane Tamendjari ◽  
Farida Afri Bouzebda ◽  
Lina Chaib ◽  
Hebib Aggad ◽  
Mohammed Ramdani ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Health Hazard ◽  
Food Poisoning ◽  
Goat Milk ◽  
Raw Milk ◽  
Penicillin G ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Adequate Treatment

Background and Aim: Staphylococcus aureus is a leading cause of infection in both humans and animals. Most livestock strains have shown antibiotic resistance to the many molecules used in veterinary therapeutics. This study aimed to assess the resistance patterns of these bacteria, we carried out our study in the Tiaret and Souk Ahras areas of Algeria. Materials and Methods: We collected 116 samples of bovine and goat milk to detect S. aureus. We used a selective media to isolate the strains, followed by biochemically identifying the isolates. We determined the susceptibility of the strains to antibiotic molecules using the disk diffusion method and confirmed the methicillin-resistant S. aureus (MRSA) with oxacillin minimum inhibitory concentration (MIC). Results: Our results showed that 26.72% of the samples were contaminated with S. aureus, and we recovered 31 isolates from the positive samples. We ascribed a high resistance profile to penicillin G (96.77%), fusidic acid (67.74%), and tobramycin (45.16%) and isolated 4MRSA strains. Conclusion: The presence of S. aureus, including MRSA strains in raw milk, can present a public health hazard, because these strains can cause widespread food poisoning . This finding will be useful to the veterinarians to choose an adequate treatment and to sensitize livestock breeders and milk producers to ensure the health of consumers.

scholarly journals Efficiency of combined action of antimicrobial preparations against poly-resistant strains of conditionally-pathogenic bacteria isolated from wounds of surgery patients

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
T. V. Sklyar ◽  
K. V. Lavrentievа ◽  
O. M. Rudas ◽  
О. V. Bilotserkivska ◽  
N. V. Kurahina ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Bacterial Infections ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Disk Diffusion Method ◽  
Antibiotic Resistant ◽  
Simultaneous Application ◽  
Strategic Approach ◽  
Resistant Strains

The strategy of use of combination therapy of antibacterial preparations is being broadly introduced to clinical practice to fight bacterial infections caused by poly-resistant strains of microorganisms. From the wounds of surgery patients, we isolated 67 clinical strains of conditionally-pathogenic bacteria identified as Staphylococcus aureus, S. epidermidis, Escherichia coli, Klebsiella pneumoniaе, Proteus vulgaris, Proteus mirabilis, Pseudomonas aeruginosa. Using disk diffusion method, the isolated bacterial strains were found to be most resistant to penicillin preparations: ampicillin, oxacillin, amoxicillin/clavulanat; tetracycline and cephalosporin of the II generation – cefoxitin. The percentage of strains insusceptible to these antibacterial preparations accounted for 65.0%. The division of antibiotic-resistant cultures regarding phenotype groups according to the level of their antibiotic resistance allowed determination of 4 PDR-, 8 XDR- and 14 MDR-strains. During the studies on experimental determining of MIC of antibiotic and antiseptics in the condition of applying them as monopreparations against isolated bacterial cultures, we saw significant exceess in the threshold values of MIC, and, first of all, regarding pandrug-resistant and extensive drug-resistant clinical microbial isolates. Use of combinations of antibacterial preparations was found to show the synergic effect of antibiotics (ceftriaxone, ofloxacin, gentamicin) and antiseptics (chlorhexidine, decasan), which is expressed in simultaneous decrease in MIC of each of the tested preparations by 2–8 times compared with their isolative application. Such combinatory approach regarding simultaneous application of antibacterial preparations may be considered as one of the most promising ways to combat poly-resistant clinical isolates of conditionally-pathogenic microorganisms and to offer a new strategic approach to prevention of spread of antibiotic resistance as a phenomenon in medical practice.

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