• 대한수의학회지
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• 제44권4호
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• pp.643-648
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• 2004

Efficacy of ciprofloxacin was evaluated in laboratory and field studies for control of streptococcal infection in flounder and eel. In disc diffussion test, all streptococcal strains showed high sensitivity to the ciprofloxacin. Minimum inhibitory concentrations of ciprofloxacin against all streptococcal strains used in this study were less than $0.195{\mu}g/ml/$. In laboratory studies where fishes were challanged with Streptococcus iniae, significant reductions in mortality were observed among fish receiving ciprofloxacin (in fed) at 100 mg/kg/body weight or more daily for 3 d when compared with mortality of non-medicated controls. Similar results were achieved when 100 mg/kg/body weight of ciprofloxacin was used in field trials.

• Clinical and Experimental Pediatrics
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• 제62권6호
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• pp.235-239
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• 2019

Purpose: In Kawasaki disease (KD) patients, coronary artery complications, incomplete and refractory types occur more frequently in patients with streptococcal or other bacterial/viral infections. Recently, we observed a higher incidence of coronary lesions in KD patients with high anti-streptolysin O (ASO) titer. Therefore, we hypothesized that KD patients diagnosed with concurrent streptococcal infection have poor prognosis, with respect to treatment response and development of coronary artery lesions. Methods: A retrospective review was performed in 723 patients with KD who were admitted to 2 major hospitals between June 2010 and September 2017. Results: Among 723 patients with KD, 11 initially showed an elevated ASO titer (>320 IU/mL) or elevated follow-up ASO titer after treatment. Of these patients, 5 showed no response to the first intravenous immunoglobulin treatment, 3 had abnormalities of the coronary arteries. This is a significantly higher proportion of patients with a high ASO titer (n=3,27.3%) than those with a normal ASO titer (n=53 [7.4%], P=0.047). A severe clinical course was seen in 81.8% of patients in the high ASO group versus 14.5% of patients in the normal ASO group. Conclusion: It is not certain whether acute streptococcal infection may cause KD, but this study revealed that KD with high ASO titers showed higher rates of severe clinical course. It may be helpful to analyze concurrent streptococcal infection in patients with a severe clinical course.

• Pediatric Infection and Vaccine
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• 제13권1호
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• pp.85-88
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• 2006

항문주위 연쇄구균성 피부염(perianal streptococcal dermatitis, PSD)은 종종 다른 소아 항문주위 질환과 혼돈되어 잘못된 치료로 질병을 악화시키므로 빠르고 정확한 진단이 중요하다. 조기 진단과 치료는 환아의 불편과 부모의 스트레스를 경감시키며, 항생제 투여를 빨리 할수록 증상이 극적으로 빨리 호전된다. 저자들은 드물지는 않지만 현실적으로 잘 알려져 있지 않은 항문주위 연쇄구균성 피부염 1례를 경험하였기에 보고하는 바이다.

• 한국어병학회지
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• 제16권1호
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• pp.51-59
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• 2003

Streptococcal infection is one of the most serious disease of cultured olive flounder, Paralychthys olivaceus in Korea and caused by more than one species. However, there has been considerable confusions about the taxonomic position of the fish pathogenic streptococci. In this study, We performed the randomly amplified polymorphic DNA(RAPD) pattern analysis to evaluate the possible classification in 8 streptococci isolated from diseased olive flounder and reference strains based on their DNA structure. RAPD PCR with DNA solution prepared by simple boiling and 10-mer random primer was appeared to be a good tool for discrimination of different streptococcal strains. Phenotypical characters by simple biological test and API 20 Strep corresponded well to the specific profiles of RAPD in streptococcal isolates of this study. Therefore, the RAPD profile was considered as one of differential characters to discriminate the streptococcal isolates from diseased olive flounder.

• Pediatric Infection and Vaccine
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• 제3권1호
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• pp.88-93
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• 1996

A군 연쇄구균에 의한 독성 쇼크 증후군은 기저질환이 없는 젊은 사람에서 쇼크와 다장기 부전증을 일으키는 신종 질환이다. 이 질환은 진행이 매우 빠르고 치명적이기 때문에 신속한 진단과 항균제 투여, 괴사조직의 수술적 제거가 필요하고 수액 주입 혹은 심근 강화제 등으로 쇼크를 적극적으로 치료를 해야 한다. 11세 여자 환아가 쇼크 목 부위 연조직 괴사, 급성 호흡부전, 신부전 및 패혈증으로 사망하여, 연쇄구균성 독성 쇼크 증후군(streptococcal toxic shock syndrome)으로 진단 받았기에 보고하는 바이다.

• Pediatric Infection and Vaccine
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• 제8권1호
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• pp.114-117
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• 2001

저자들은 A군 연구균 감염에 의한 독성 쇼크양 증후군으로 저혈압, 간 기능 장애, 신 기능 장애, 혈소판 감소증을 보인 환아를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Pediatric Infection and Vaccine
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• 제10권2호
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• pp.143-144
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• 2003

• Pediatric Infection and Vaccine
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• 제3권2호
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• pp.123-127
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• 1996

Purpose : The most patients with acute streptococcal pharyngitis lack of classic clinical manifestations, therefore diagnostic laboratory test such as the throat culture or a rapid antigen detection test are frequently employed in primary practices of developed countries. We'd like to know the accuracy of the throat swab culture as gold standard for diagnosis of streptococcal infection with studying the discordant and concordant rate of duplicate culture. Methods : The study included 89 normal school children (boys:50, girls:39) who were attending Uljin primary school in Uljin, Kyong Sang Buk Do on March 1996. We obtained simultaneous 2 times of throat swab from each subject, and plating and streaking on 5-7% of sheep blood agar separately. We counted the characteristic beta-hemolytic colonies after overnight incubation. Results : 1) The carrier rate of beta-hemolytic streptococci at first culture is 25.1% and second one is 29.2%. 2) Ten out of 89(11.2%) is discordant in duplicate culture. 3) Culture containing less than 50 colonies of beta-hemolytic streptococci (+2) in first culture is 70.4%, second one is 85.7%. 4) Number of colonies is less than 50 in all ten discordant children. Conclusions : The discordant rate of duplicate throat swab cullture for beta-hemolytic streptococci is 11.2%, even if the subjects are normal school children. About 5% of individuals harboring beta-hemolytic streptococci in the pharynx may be missed by a single throat culture. If we are trying to examine the patients with pharyngitis, the discordant rate will be much lower than this results.

• Molecules and Cells
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• 제41권6호
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• pp.495-505
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• 2018

Several bacterial etiological agents of streptococcal disease have been associated with fish mortality and serious global economic loss. Bacterial identification based on biochemical, molecular, and phenotypic methods has been routinely used, along with assessment of morphological analyses. Among these, the molecular method of 16S rRNA sequencing is reliable, but presently, advanced genomics are preferred over other traditional identification methodologies. This review highlights the geographical variation in strains, their relatedness, as well as the complexity of diagnosis, pathogenesis, and various control methods of streptococcal infections. Several limitations, from diagnosis to control, have been reported, which make prevention and containment of streptococcal disease difficult. In this review, we discuss the challenges in diagnosis, pathogenesis, and control methods and suggest appropriate molecular (comparative genomics), cellular, and environmental solutions from among the best available possibilities.

• Pediatric Infection and Vaccine
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• 제11권2호
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• pp.208-211
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• 2004

임상적으로 급성 류마티스 열을 진단할 때 Jones 진단기준에 맞지 않는 경우, 특히 관절염이 있고, 이하학적 검사상 A군 베타 용혈성 연구균감염과 관련이 있을 때, 급성 류마티스 열과 연구균 감염성 반응성 관절염의 구분은 치료나 예후를 결정하는데 중요하다. 지금까지의 문헌을 참고한 결과, 연구균 감염성 반응성 관절염으로 진단된 환아 중 소수에서도 심염이 발생했음을 알 수 있고, 따라서 예방적 항생제 요법을 시행함에 있어 1년간 매달 페니실린 예방요법을 시행하고 심염이 발생한 경우에는 급성 류마티스 열로 재분류 후 이에 준해 치료하여야 하겠다. 저자들의 증례는 고열과 왼쪽 무릎 관절통을 주소로 내원한 연구균 감염성 반응성 관절염 환아 1례를 경험하였기에 보고하는 바이다.