• Clinical and Experimental Pediatrics
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• v.46 no.4
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• pp.351-357
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• 2003

Purpose : To raise awareness of the clinical importance of, and the need for proper management of acute focal bacterial nephritis(AFBN), we analyzed 22 AFBN patients and 22 other upper urinary tract infection patients by use of comparative studies. Methods : From January 2000 to May 2002, 22 AFBN patients aged from 1 month to 12 months were selected. As a control group, 22 UTI patients with no radiologic abnormalities were selected and matched by age and sex. Results : The incidence of AFBN was more common in boys than in girls. Since both groups had similar symptoms, it was difficult to diagnose AFBN by clinical presentations alone. ESR and CRP were significantly higher in AFBN patients. The most common causative organism was E. coli in both groups. On the sonographic findings, the most lesions were seen on the upper lobe of the kidney; more frequently, on left kidney. The lesions showed globular or wedge-shaped increased echogenecity. $^{99m}Tc-DMSA$ scan showed the complete coincidence of the location, size and shape in all cases compared to the findings of renal sonography. Conclusion : The roles of renal sonography and DMSA scan were very important, and ultrasonography was an excellent initial tool in diagnosing AFBN. Since the degree of infection in AFBN is more severe than other urinary tract infections and evollution into a renal abscess is possible, early diagnosis and appropriate antibiotics therapy is essential.

• Journal of the Korea Organic Resources Recycling Association
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• v.13 no.2
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• pp.121-127
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• 2005

A heterotrophic nitrifying bacterium was isolated from the compost and analyzed for its characteristics. This bacterium was found to be a Gram positive rod, catalase positive, and motile. Nitrite production was detected on the ammonium acetate medium through the violet color formation. BBL test showed that this strain has high homology with Bacillus strains. Phylogenetic analysis using 16S rDNA revealed that the bacterium has 94% of similarity with Mycobacterium smegmatis strain.

• KSBB Journal
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• v.20 no.5 s.94
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• pp.387-391
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• 2005

Totally 16,299 conservative genes, commonly found in 13 thermophilic and hyperthermophilic bacteria, were analyzed. All genes were belong to W 67 COGs (clusters of orthologous groups of proteins). COGs related to protein metabolism were 80 among 167 COGs. Conservative genes were not limited only thermophiles and hyperthermophiles, meaning thermal stability is independent of specific protein. However reverse gyrase was only found in all hyperthermophilic archaebacteria and eubacteria, meaning DNA stability is important in hyperthermophiles. Hyperthermophilic eubacteria and thermophilic archaebacteria had different position between phylogenetic tree of gene content and 165 rRNA gene. Thermophilic archaebacteria hyperthermophilic eubacteria and archaebacteria had similar values by the statistical analysis of distance values with 167 COGs in each organism.

• Journal of Veterinary Clinics
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• v.27 no.1
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• pp.6-10
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• 2010

Bacterial pathogens were isolated from dogs with urinary tract infection (UTI) in local animal hospitals between August 2003 and December 2009. Bacteria were isolated from urine of 47 dogs. The isolated pathogens were Escherichia coli (n = 27), Streptococcus spp. (n = 7), Staphylococcus spp. (n = 5), Enterobacter spp. (n = 3), Proteus spp. (n = 2), other species were 3 strains, respectively. E. coli were susceptible to imimpenem, polymyxin B, amikacin, cephalosporins, aztreonam, amoxicillin clavulate, cephalosporins, tricarcillin, and amoxicillin clavulate, while were resistant bacitracin, erythromycin, lincomycin, oxacillin, penicillin, and novobiocin. Streptococcus spp. were susceptible to bacitracin, imimpenem, and trimethoprime-sulfa, while were highly resistant amikacin, cefotaxim, cefoxitin, cloxacillin, gentamicin, lincomycin, oxacillin, penicillin, streptomycin, and tobramycin. Staphylococcus spp. were susceptible to cefoxitin, doxycycline, enrofloxacin, imimpenem, and tobramycin, but were resistant aztreonam and tetracycline.

• Pediatric Infection and Vaccine
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• v.15 no.2
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• pp.202-205
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• 2008

Tuberculous otitis media is a rare clnical finding. In the past, painless watery otorrhea and multiple perforations of the ear drum were considered classic signs and symptoms of tuberculous otitis media, but the clinical features have changed in recent years. The diagnosis of tuberculous otitis media is hampered by its low incidence and non-specific clinical features. Moreover, delayed diagnosis can result in irreversible and serious consequences, such as hearing loss, facial nerve palsy, and intracranial dissemination. Tuberculous otitis media should be considered in the differential diagnosis of antibiotic-refractory otitis media.

• Research in Plant Disease
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• v.6 no.1
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• pp.15-18
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• 2000

A new bacterial disease was found on leaves of Kalanchoe blossfeldiana plant grown under vinyl-house condition in winter of 1998 in Taejeon. the first symptoms of the disease are the appearance of the water-soaked and light brown spots. Later they become soft rot with brown color. Causal bacteria were isolated from diseased tissues and the same symptoms as the natural infection were developed on Kalanchoe blossfeldiana leaves by needle-prick inoculation. The causal bacterium was identified Erwinia hervicola by its bacteriological characteristics. This is the first reported of this bacterium to occur on kalanchoe blossfeldiana plant in Korea. Therefore, we proposed to name the diseases as \"bacterial soft rot of Kalanchoe blossfeldiana\" by E. herbiocla.

• Pediatric Infection and Vaccine
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• v.10 no.2
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• pp.215-222
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• 2003

Purpose : This study was to analyze serious bacterial infections in infants younger than three months of age and to review the direction of treatments for these patients. Methods : 378 febrile infants with a rectal temperature ${\geq}38.0^{\circ}C$ visited from Jan. 2001 through Dec. 2002 were retrospectively studied. Infants with the following criteria belonged to the low risk group. WBC $5,000{\sim}15,000/mm^3$, WBC negative in urine stick test and negative for nitirite test, CSF WBC < $10/mm^3$ and negative in CSF gram stain, negative chest X-ray, stool WBC <5/HFP(high power field), and focal infection. If any of the above criteria were not met, they belonged to the high risk group. SBI was defined as a positive culture of urine, blood or CSF. SI was defined as aseptic meningitis or pneumonia including above laboratory tests of SBI. SBI patients were separately compared with two groups, high risk and low risk. Results : Of the 378 infants that were tested 216(57.1%) were in the high risk group and 162(42.9%) in the low risk group. Among 105 SBI(27.8%) and 172 SI(45.5%), there were 98 urinary tract infection(25.2%), 10 bacteremia(2.6%), 2 bacterial meningitis(0.6%), and 77 aseptic meningitis(22.8%). There were 76 SBI(35.2%) from the high risk group and 29 SBI(17.9%) from the low risk group identified. The results of the sensitivity(72.4%), the specificity(48.7%), the negative predictive value(82.1%) and the positive predictive value (35.2%) were calculated. Conclusion : Even though the probability of SBI in the low risk group is insignificant, it should still be considered in febrile infants younger than 3 months of age. I believe the CSF study is necessary because of the moderate high incidence of abnormal finding in our study.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.05a
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• pp.397-401
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• 2004

장조림 원료 쇠고기 우둔살과 가열 처리한 쇠고기 우둔살에서 중온성 세균, 저온성 세균, 혐기성 세균, 포자형성균 및 대장균군 등과 같은 미생물 균수의 변화를 측정하였고, B. cereus, C. botulinum, C. perfringens, L. monocytogenes 등과 같은 9종류의 주요 병원성 세균의 분리를 시도하였다. 원료육에서 중온균, 저온균, 혐기성 균 등은 대부분 높은 분포를 보였으나 가열 처리육에서는 급격히 감소하였으며, 대장균군, E. coli, Enterpbacteriacea, C. perfringens, S. aureus 등은 원료육과 가열 처리한 쇠고기 우둔살에서 모두 검출되지 않았다. 식중독균인 B. cereus, C. perfringens 및 L. monocytogenes등 3균주가 원료육에서 분리된 반면, C. botulinum, E. coli 0157:H7, Salmonella spp., Shigella spp., S. aureus 및 Y. enterocolitica는 분리되지 않았다.

• Korean Journal of Agricultural Science
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• v.15 no.2
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• pp.132-137
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• 1988

Twenty-six cabbage rot samples were collected from markets and main cabbage-growing areas in Korea and isolates of pathogenic bacteria were obtained from the collection. According to their bacteriological characteristics and pathogenicity, the majority of rot bacteria were identified as Erwinia carotovora subsp. carotovora. Pseudomollas cichorii. P. viridiflava and Xanthomonas campestris pv. campestri. Among these four species, E. carotovora subsp. carotovora and X. campestris pv. campestris were found to cause serious damage to cabbage production throughout Korea. Two species of the causal bacteria were sometimes isolates from a single cabbage rot sample and it suggest that the mixed infection of the two bacteria be occurred under field condition.

• Korean Journal of Microbiology
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• v.46 no.4
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• pp.405-408
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• 2010

Diversity of myxobacteria in five soil samples from Asansi and Uponeup in Korea was explored by means of polymerase chain reaction (PCR) using primers that specifically bind 16S rDNA of myxobacteria. DNA sequence analysis of 76 PCR fragments containing myxobacterial 16S rDNA revealed five putative novel myxobacterial genera whose 16S rDNA sequences shared <95% sequence identity with those of the type strains. This finding indicates the presence of many uncultured and unidentified myxobacterial species in Korean soil.