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건강한 가축에서 분리한 Escherichia coli의 항생제 내성 조사(2010~2012년)
임숙경,남향미,문동찬,장금찬,정석찬,시,도 시험소 및 보건환경연구원 항생제 내성 모니터링 담당자,Lim, Suk-Kyung,Nam, Hyang-Mi,Moon, Dong-Chan,Jang, Geum-Chan,Jung, Suk-Chan,Korean, Veterinary 대한수의학회 2014 大韓獸醫學會誌 Vol.54 No.3
The purpose of present study was to investigate the antimicrobial resistance in Escherichia coli isolated from healthy animals in all provinces of the Republic of Korea. A total of 2,085 E. coli strains isolated from 11,336 fecal samples of healthy animals during 2010-2012 were examined for antimicrobial resistance. Comparison of average resistance rate through the years revealed that tetracycline (47.0% and 76.1%) and streptomycin resistance (42.6% and 64.6%) was most frequently observed in cattle and pigs, respectively. Whereas, in chicken isolates, resistance against nalidixic acid (90.9%) was highest among the antimicrobials tested. Percentage of E. coli that showed multidrug resistance (resistance against ${\geq}$ three subclasses of antimicrobial agents) was 17.6% (151/860) in cattle, 69.4% (506/729) in pigs, and 86.1% (427/496) in chickens. Overall, the rates of resistance are apparently different between animal species and, in particular, resistance was less prevalent in cattle than in pigs and chickens. In conclusion, this study showed higher prevalence of resistance in commensal E. coli strains to antimicrobial agents in Korean livestock and highlighted the urgent need for measures to regulate the abuse of antimicrobial agents.
목장원유의 경시별 유질 변화 및 보존제 사용에 관한 연구
문진산,주이석,임숙경,장금찬,김종염,표수일,사혁,배은아,Mun Jin San,Ju Lee Seok,Im Suk Gyeong,Jang Geum Chan,Kim Jong Yeom,Pyo Su Il,Sa Hyeok,Bae Eun A 대한수의사회 1999 대한수의사회지 Vol.35 No.3
The differences in milk payment systems with regard to price determination, quality standards are large among countries. but the nature of payment systems were related to milk quality and hygienic qualitys. The number of samples for analysis varied agains
국내 가축 및 수산에서 항생제 판매 추이(2003-2012)
임숙경,이정은,이혜숙,남향미,문동찬,장금찬,박연주,정윤구,정석찬,위성환,Lim, Suk-Kyung,Lee, Jeong-Eun,Lee, Hye-Sook,Nam, Hyang-Mi,Moon, Dong-Chan,Jang, Geum-Chan,Park, Yeon-Ju,Jung, Yun-Gu,Jung, Suk-Chan,Wee, Sung-Hwan 대한수의학회 2014 大韓獸醫學會誌 Vol.54 No.2
In this study, trends in the sales of antimicrobials for use in livestock facilities and fisheries from 2003 to 2012 were investigated with regard to antimicrobial group, antimicrobial usage, and animal species. The overall amount of antimicrobials sold each year from 2003 to 2007 was 1,500 tons, after which they decreased, with the lowest sales being 936 tons in 2012. The total volume of antimicrobials used for feed additives decreased markedly by 94% from 2003 to 2012, which was mainly attributed to banning of feed additives. However, antimicrobial consumption through self prescription by farmers for disease prevention and treatment increased by 25% from 2003 to 2012. The largest volume of antimicrobials sold was for use in pigs (48~57%), followed by poultry (18~24%), fisheries (11~25%), and cattle (5~8%). Tetracycline was the highest selling antimicrobial, followed by penicillins and sulfonamides, although the overall sale of all three antimicrobials gradually decreased over the study period. This study demonstrated that the total consumption of antimicrobials has gradually decreased since 2008. Nevertheless, usage by nonprofessionals increased, which can ultimately cause emergence and spread of antimicrobial resistance. Thus, early establishment of veterinary prescription guidelines for prudent use of antimicrobials is urgently needed in Korea.
2010년 가축 및 도축장 식육에서 분리한 Salmonella의 항생제 내성
김수란 ( Su Ran Kim ),남향미 ( Hyang Mi Nam ),장금찬 ( Geum Chan Jang ),김애란 ( Ae Ran Kim ),강민수 ( Min Su Kang ),채명화 ( Myung Hwa Chae ),정석찬 ( Suk Chan Jung ),강대진 ( Dae Jin Kang ),김준걸 ( Joon Kul Kim ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.4
Salmonellosis constitutes an important public health problem in both developing and developed countries, including Korea. The aims of present study were to investigate the serovar and antimicrobial resistance of Salmonella isolated from food animals and animal products in slaughterhouses and farms. A total of 323 Salmonella were isolated from food animals (n=277) and meats (n=46) during 2010. Of the isolates, 21 different serovars were identified. The predominant serovars were S. Rissen (35%) and S. Montevideo (24.3) in healthy pigs, while S. Enteritidis (25.5%) in healthy chicken. S. Typhimurium (88.8%) was predominant in disease pigs, while S. Gallinarum (29.2%) and S. Montevideo (26.9%) were in diseased chickens. Among meat samples, S. Typhimurium (57.1%) was the most common serovar in pork but S. Enteritidis (38.7%) and S. Montevideo(32.3%) were in chikcen meats. Analysis of antimicrobial resistance patterns revealed that 20.7% of the isolates were sensitive to all the 15 drugs tested. The isolates were frequently resistant to nalidixic acid (47.7%), tetracycline (38.4%), streptomycin (33.7%), and ampicillin (32.8%). The resistance to quinolone and 3rd generation cephalosporins was higher in chicken and chicken meat isolates. Of the 323 isolates, 174 (53.9%) were resistant to one or more CLSI subclass, and 117 (36.2%) showed multiple-resistance. Our findings showed that multiple resistant Salmonella organism are widespread in animals and animal products in Korea. To prevent the transmission or exposure for consumers of antimicrobial resistant Salmonella, policies and guidelines aiming at prudential use of critical antimicrobials for humans are needed.
2010년 도축장 식육에서 분리한 Campylobacter jejuni와 Campylobacter coli의 항생제 내성
채명화 ( Myung Hwa Chae ),남향미 ( Hyang Mi Nam ),장금찬 ( Geum Chan Jang ),김혜지 ( Hae Ji Kim ),김수란 ( Su Ran Kim ),정석찬 ( Suk Chan Jung ),강대진 ( Dae Jin Kang ),김준걸 ( Joon Kul Kim ),임숙경 ( Suk Kyung Lim ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.4
Campylobacterosis is the most common food borne bacterial disease in many countries. Food animals and animal products are considered to be the reservoir of the Campylobacter species. The aim of this study was to investigate the antimicrobial resistance of Campylobacter spp. from food animals and raw meats in slaughterhouses. A total of 90 Campylobacter jejuni (C. jejuni) and 127 Campylobacter coli (C. coli) were isolated, for which antimicrobial susceptibility was examined using broth dilution method. Resistance to macrolide antimicrobials was higher among C. coli isolates than among C. jejuni. Among both C. jejuni and C. coli isolates, the most frequently observed resistance was to nalidixic acid, ciprofloxacin, and tetracycline. No erythromycin resistance was observed among C. jejuni isolates from cattle, pig and beef. However, 28.3% (n=13) and 25% (n=3) of C. coli isolates from pigs and pork showed resistance to erythromycin, respectively. The predominant profile of multiple resistance among C. jejuni and C. coli isolates was ciprofloxacin/tetracycline/nalidixic acid resistance (46.7%) and ciprofloxacin/nalidixic acid resistance (31.5%), respectively. This finding has important implication for food safety and public health.
2008년 국내 산양유 시료에서의 세균 및 체세포 수 조사
남향미 ( Hyang Mi Nam ),임숙경 ( Suk Kyung Lim ),김종만 ( Jong Man Kim ),장금찬 ( Geum Chan Jang ),정석찬 ( Suk Chan Jung ),위성환 ( Sung Hwan Wee ),한홍율 ( Hong Ryul Han ),이청산 ( Cheong San Lee ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.1
A total of 222 udder-half milk samples of lactating goats were collected from two herds in Korea during 2008 and all samples were subjected to bacteriological examination. Somatic cell counts (SCC) were also determined for all samples except for 13 (5.9%), which were collected from halves of udders with clinical mastitis. A total of 85 bacteria were isolated from 82 (36.9%) of 222 milk samples tested. Staphylococci were the predominant pathogens, accounting for almost 70% of the isolates: Coagulase negative staphylococci (CNS) and S. aureus constituted 55% (47/85) and 14.1% (12/85), respectively. Among 209 samples tested for SCC, bacteria were isolated from 36 of 115 (31.3%) samples with SCC of <1×106 cells/㎖and 38 of 94 (40.4%) samples that had SCC of ≥1×106 cells/㎖, respectively. All S. aureus were detected from samples with SCC of ≥1×106 cells/㎖, while 25 of 47 (61.0%) CNS were isolated from milk samples with SCC of <1×106 cells/㎖. Mean SCC of milk samples that harbored S. aureus and CNS was 4,787×103 cells/㎖and >1×106 cells/㎖, respectively. All S. aureus and CNS isolates were susceptible to all antimicrobials tested except for penicillin, to which 2 (16.6%) S. aureus and 12 (25.5%) CNS isolates showed resistance.
2010년 도축장 식육에서 분리한 Staphylococcus aureus의 항생제 내성
임숙경 ( Suk Kyung Lim ),남향미 ( Hyang Mi Nam ),장금찬 ( Geum Chan Jang ),김수란 ( Su Ran Kim ),채명화 ( Myung Hwa Chae ),정석찬 ( Suk Chan Jung ),강대진 ( Dae Jin Kang ),김준걸 ( Joon Kul Kim ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.4
Staphylococcus aureus is an important food-borne pathogen, which is present on the skin and mucosa of animals. Some of the S. aureus strains are causative agent of food poisoning syndrome. The aim of this study was to investigate the antimicrobial resistance of S. aureus isolates from raw meats in slaughterhouses during 2010. From 17,874 raw meat samples tested, a total of 190 S. aureus were isolated, for which antimicrobial susceptibility to 17 agents was examined using broth dilution method. Among isolates from beef, chicken and pork, 20 (51.3%), 20 (24.7%) and 9 (12.9%) were sensitive to all antimicrobials tested, respectively. Isolates from pork and chicken meats showed much higher resistance, compared to isolates from beef. Penicillin resistance was the most frequent among isolates from beef (35.3%) and pork (75.7%), while tetracycline resistance was among those from chicken meats (48.1%). A total of 3 methicillin resistant S. aureus (MRSA) were detected from beef (5.1%, 2/39) and pork (1.4%, 1/70). Although the prevalence of MRSA was low, the presence of antimicrobial resistant S. aureus such as MRSA suggests that further investigation and strict surveillance on MRSA and antimicrobial resistance are needed.