• Title/Summary/Keyword: antibiotic use

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Analysis of the anti-microbial susceptibility of Clostridium isolated on clinical specimens from captive wild animals in Seoul Zoo (서울동물원 야생동물의 임상 검체 내 Clostridium 균의 항생제 내성 분석)

  • Lee, Hany;Yeo, Yong-Gu;Ahn, Sangjin;Kim, Jong-Taek
    • Korean Journal of Veterinary Service
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    • v.43 no.1
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    • pp.31-37
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    • 2020
  • Clostridial bacteria are zoonotic agents, which cause severe necrotizing enteritis, pseudo-membrane colitis, enterotoxemia to both humans and animals. The objective of this study was to monitor the antibiotic resistance of Clostridium isolates on clinical specimens from wild animals in Seoul zoo for 5 years. Clostridium isolates were verified by using Vitek2 compact machine. Antibiotic susceptibility was assessed by antibiotic disc diffusion test, which was followed by Kirby-Bauer disc diffusion test method. The frequency of Antimicrobial resistance of Clostridium isolate was the greatest in gentamicin (87%), then in order of amikacin (80%). There were 55.6% of Clostridium isolates showed multiple drug resistance (MDR). These results showed that a lot of Clostridial bacteria from wild animals in Seoul zoo were acquired antibiotic resistance. Because of the wild animal's aggressive manner, it has been hard to collect clinical samples from wild animals in a zoo to exam antibiotic susceptibility. For these reasons, empirical use of antibiotics has been performed in frequently. It may cause to increase the emergence of antibiotic resistance bacteria. In addition, the antibiotic resistance bacteria from zoo animals can be spread to other wild animals which inhabit around the zoo. Therefore, regular monitoring of antibiotic resistance Clostridial bacteria is important to protect animals and humans from Clostridial diseases.

The Main Considerations for Antibiotic Therapy in Dental Office (임상가를 위한 특집 3 - 치과에서 항생제 치료시 고려할 사항)

  • Baek, Jeong-Hwa
    • The Journal of the Korean dental association
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    • v.51 no.3
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    • pp.148-155
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    • 2013
  • Antibiotic is one of the mainly prescribed drugs in dental office. The substantial part of all antibiotics used in dental office is given to patients without signs or symptoms of infection to prevent infections, and antibiotics became the most widely abused prescribed drugs on the basis of inappropriate indications, dosages and durations. Considering that antibiotics are one of the drugs that affect not only a single patient but also entire populations of individuals through their collective effects on microbial ecology, the importance of proper use of antimicrobial therapy can hardly be overemphasized. Therefore, the main considerations for antibiotic therapy in denial office were summarized here.

Mitigating Antibiotic Resistance at the Livestock-Environment Interface: A Review

  • Ma, Zhengxin;Lee, Shinyoung;Jeong, K. Casey
    • Journal of Microbiology and Biotechnology
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    • v.29 no.11
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    • pp.1683-1692
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    • 2019
  • The rise of antimicrobial resistance (AR) is a major threat to global health. The food animal industry contributes to the increasing occurrence of AR. Multiple factors can affect the occurrence and dissemination of AR in the animal industry, including antibiotic use and farm management. Many studies have focused on how the use of antibiotics in food-producing animals has led to the development of AR. However, a few effective mitigating strategies for AR have been developed in food-producing animals, especially those exposed to the environment. The aim of this review is to summarize potential strategies applicable for mitigating AR at the environment-livestock interface.

Antibiotics and Probiotics Prophylaxis for Recurrent Urinary Tract Infection in Children

  • Lee, Jung Won
    • Childhood Kidney Diseases
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    • v.20 no.1
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    • pp.1-5
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    • 2016
  • Since many years, continuous low dose antibiotic prophylaxis (CAP) has been used for children at a risk for recurrent urinary tract infection (UTI), especially those with vesicoureteral reflux (VUR). The incidence of recurrent UTI has been shown to be higher in children with VUR with bladder and bowel dysfunction (BBD) than in those with VUR without BBD. Therefore, CAP has been recommended for children with BBD and VUR because of the increased risk of UTI. However, the use of CAP has become highly controversial because of bacterial resistance developed due to antibiotic over-usage. The preventive effects of probiotics have been proved in various adult urogenital infections, and the antimicrobial activities of lactobacilli against uropathogens have been demonstrated in previous in vitro studies. However, a critical assessment of their efficacy in children with UTI is lacking. The importance of the use of urogenital probiotics is that it is a natural approach that replenishes the depleted normal flora to create a better environment to fight off uropathogens. Probiotics have a great potential, particularly today with the increasing threat of antibiotic-resistant microorganisms.

Antibiotic Sensitivity Pattern of Pathogens from Children with UTI (소아 요로 감염 원인균의 항생제 감수성 고찰(2003-2005))

  • Kwon, Young-Dae;Kim, Myung-Jin;Kim, Hee-Un;Song, Jin-Young;Ko, Joon-Tae;Kang, Ho-Seok;Oh, Sei-Ho
    • Childhood Kidney Diseases
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    • v.10 no.2
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    • pp.182-191
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    • 2006
  • Purpose : We studied the degree of changes in antibiotic sensitivity toward causative organisms, prevalence and clinical manifestations of extended-spectrum $\beta$-lactamase(ESBL)-producers of urinary tract infection(UTI) for a period of three years. This serves to provide useful information in selecting adequate drugs for the treatment of UTI. Methods : We recruited 137 patients who grew more than $10^5$ CFU/mL in their urine culture among 250 patients who visited and were admitted to Handong University's Sunlin Hospital for UTI treatment from January 2003 to December 2005. We retrospectively analyzed the data from the medical records. Results : The common pathogenic organisms were Escherichia coli(65.0%), Klepsiella pneumoniae(14.0%), Enterococcus faecalis(5.8%) and Proteus vulgaris(2.9%) in consecutive order. The prevalence of ESBL-producers among isolated E. coli and K. pneumoniae was 4.5%(4 cases) and 14.3%(2 cases), respectively. The antibiotic sensitivity rates of E. coli were relatively high to amikacin(100%), imipenem(100%), ceftriaxone(95.5%) and tobramycin(91.4%) while relatively low to TMP/SMZ(55.4%), ampicillin/sulbactam(29.4%) and ampicillin(24.2%). Conclusion : The use of ampicillin, ampicillin/sulbactam and TMP/SMZ, which have been the first choices in the treatment of UTI, should be reconsidered due to the low sensitivity rates towards these antibiotics. Due to the high incidence and antibiotic tolerance of ESBL that might have risen from the development of new antibiotics and increased antibiotic use, it is necessary to consider changing the standard antibiotics that have been used in the treatment of UTI.

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Prioritizing Human Use Antibiotics for Environmental Health Management and Estimating Their Environmental Concentrations in Korean Waterway (인체용 항생제의 우선관리대상 선정과 물환경 중 오염농도 추정)

  • Kim, Myung-Hyun;Park, Jeong-Im;Kim, Young-Hee;Choi, Kyung-Ho
    • Journal of Environmental Health Sciences
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    • v.32 no.5 s.92
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    • pp.462-468
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    • 2006
  • Antibiotics are manufactured and used for specific physiological functions, hence they may exert adverse ecological consequences when they are in contact with nontarget organisms. In the last decade, many reports have been made on the occurrences of various antibiotic compounds in surface water, and their potential impact to the environment has become an increasing concern. This study was conducted to prioritize antibiotic substances with potential environment risk in Korea. Human use antibiotics with an EIC (Expected Introduction Concentration) value greater than $1{\mu}g/l$, US FDA's action limit criteria, were selected. In order to calculate a worst-case EIC for each substance, annual production volume (in kg) of each antibiotic substance was derived using the Korea Pharmaceutical Manufacturers Association (KPMA)'s monetary database. Sixteen substances were preliminarily selected. The EICs of the 16 antibiotic substances were refined with the excretion rate of the parent substances. Ten antibiotic substances were identified to have EIC-corrected greater than $1{\mu}g/l$, which include Amoxicillin ($15.8{\mu}g/l$), Cefaclor ($10.1{\mu}/l$), Roxithromycin ($4.2{\mu}g/l$), Cephradine ($4.5{\mu}g/l$), Cefatrizine ($2.6{\mu}g/l$), Cefadroxil ($3.3{\mu}g/l$), Aztreonam ($2.3{\mu}g/l$), Ceftazidime ($2.8{\mu}g/l$), Ribostamycin ($1.3{\mu}g/l$), and Ceftezole ($1.3{\mu}g/l$). Additional risk assessments for these antibiotic substances are suggested.

Analysis of antibiotic resistance genes in pig feces during the weaning transition using whole metagenome shotgun sequencing

  • Gi Beom Keum;Eun Sol Kim;Jinho Cho;Minho Song;Kwang Kyo Oh;Jae Hyoung Cho;Sheena Kim;Hyeri Kim;Jinok Kwak;Hyunok Doo;Sriniwas Pandey;Hyeun Bum Kim;Ju-Hoon Lee
    • Journal of Animal Science and Technology
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    • v.65 no.1
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    • pp.175-182
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    • 2023
  • Antibiotics have been used in livestock production for not only treatment but also for increasing the effectiveness of animal feed, aiding animal growth, and preventing infectious diseases at the time when immunity is lowered due to stress. South Korea and the EU are among the countries that have prohibited the use of antibiotics for growth promotion in order to prevent indiscriminate use of antibiotics, as previous studies have shown that it may lead to increase in cases of antibiotic-resistant bacteria. Therefore, this study evaluated the number of antibiotic resistance genes in piglets staging from pre-weaning to weaning. Fecal samples were collected from 8 piglets just prior to weaning (21 d of age) and again one week after weaning (28 d of age). Total DNA was extracted from the 200 mg of feces collected from the 8 piglets. Whole metagenome shotgun sequencing was carried out using the Illumina Hi-Seq 2000 platform and raw sequence data were imported to Metagenomics Rapid Annotation using Subsystem Technology (MG-RAST) pipeline for microbial functional analysis. The results of this study did not show an increase in antibiotic-resistant bacteria although confirmed an increase in antibiotic-resistant genes as the consequence of changes in diet and environment during the experiment.

Prevalence of Antibiotic-Resistant Strains among Bacteria Isolated from Bovine Mastitis, Swine Diarrhea, and Swine Pneumonia. (소 유방염, 돼지설사, 돼지 폐렴의 원인균 분리 동정과 항생제 내성균 분포)

  • 박재춘;김인송;권성균;노정미;이상명;박종필;이완규;유상렬
    • Microbiology and Biotechnology Letters
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    • v.28 no.4
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    • pp.189-194
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    • 2000
  • Microorganisms causing bovine mastitis, swine diarrhea and swine pneumonia were isolated from farms in Chungbuk and Kyunggi Province and the isolates were identified using microbial identification system(MIS). The most common isolates from bovine mastitis were Staphylococcus sp.,Streptococcus sp., and Corynebacterium sp., those from swine diarrhea were Escherichia coli, Salmonella sp., and Clostridium perfringens, those from swine pneumonia were Bordetella bronchiseptica and Pasteurella multocida. Examination of 16 antibiotics against these pathogens revealed that the incidence of antibiotic-resistant microoganisms were very high and that many of these isolates had multiple resistance to various commercially available antibiotics such as penicillin, ampicillin, erythromycin, streptomycin, norfloxacin, and tetracycline. These results suggest that the use of antibiotics in a farm should be controlled in order to decrease the number of antibiotic-resistant microorganisms were very high and that many of these isolates had multiple resistance to various commercially available antibiotics such as penicillin, ampicillin, erythromycin, streptomycin, norfloxacin, and tetracycline. These results suggest that the use of antibiotics in a farm should be controlled in order to decrease the number of antibiotic-resistant microorganisms.

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Clinical Implications of Drug-Resistant $Streptococcus$ $pneumoniae$ as a Cause of Community Acquired Pneumonia (폐렴원인균으로서 약제내성 폐렴사슬알균 ($Drug-resistant$ $Streptococcus$ $pneumoniae$)의 현황과 임상적 의미)

  • Shin, Kyeong-Cheol
    • Journal of Yeungnam Medical Science
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    • v.28 no.1
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    • pp.13-19
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    • 2011
  • The emergence of antibiotic-resistant pathogens is a Serious clinical problem in the treatment of infectious diseases that increase mortality, morbidity, hospitalization length, and the cost of healthcare. In particular, $Streptococcus$ $pneumoniae$ is a major etiologic pathogen of pneumonia, sinusitis, otitis media, and meningitis. As the definition of penicillin resistance to $S.$ $pneumoniae$ was recently changed, macrolide-resistant $S.$ $pneumoniae$ is a major resistant pathogen in the community. Infections caused by antibiotic-resistant strains are associated with incorrect use of antibiotics and critical clinical outcomes. For the appropriate use of antibiotics to treat infections, physicians always should have up-to-date information on the current epidemiologic status of antibiotic resistance for common pathogens and their susceptibility to antimicrobials. Appropriate selection of antimicrobials, strict control of infection, vaccination, and development of a feasible national policy of infection control are important strategies for the control of antimicrobial resistance. This review article focuses on the current status of antibiotic-resistant $S.$ $pneumoniae$ in community-acquired pneumonia in Korea.

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Antimicrobial susceptibility of Staphylococcus aureus and S. intermedius isolated from dogs (개에서 분리한 Staphylococcus aureus와 S. intermedius의 항생제 감수성)

  • Byun, Jeong Hye;Kim, Tae Jung
    • Korean Journal of Veterinary Research
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    • v.47 no.1
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    • pp.43-50
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    • 2007
  • Staphylococci are Gram-positive, facultatively anaerobic cocci, normally found on the skin andmucosal surfaces of most warm-blooded animals and often involved in a wide variety of diseases in animals.Staphylococcal infections are treated with antibiotics and, consequently, antibiotic resistance and/or acquiredresistance have developed. Staphylococcus (S.) intermedius and Staphylococcus (S.) aureus are 2 comonveterinary isolates that are frequently associated with suppurative infections. This study was undertaken toexamine antimicrobial susceptibility of S. aureus (23 isolates) and S. intermedius (160 isolates) isolatedfrom dogs in Gwangju, Korea and investigate whether the antibiotic resistance of S. aureus and S.intermedius is efected by the site of isolation, age, and sex of dogs. More isolates were isolated fromadult dogs (71.3%) than juveniles (20.5%). Antimicrobial resistance was commonly found for Penicillin,Tetracycline, Trimethoprim-Sulphamethoxazole in both Staphylococcus species. All of the isolates weresusceptible to Amoxicillin/Clavulanic Acid, Cephalothin, Oxacilin, Neomycin, and Vancomycin. Appropriateprotocol for antibiotic use and strategies to reduce antimicrobial resistance rate will be needed. Periodicsubstitution of antimicrobial agents and limitation of antibiotic use should also be considered.