1.Antibodies to borrelia burgdorferi in subjects with high risk of exposure to ticks.
Journal of the Korean Society for Microbiology 1992;27(3):277-282
No abstract available.
Antibodies*
;
Borrelia burgdorferi*
;
Borrelia*
;
Ticks*
3.Review of clinical and laboratory features of patients to determinethe significance of increased isolation of clostridium difficile.
Chung Hyun NAM ; Yunsop CHONG ; Oh Hun KWON ; Samuel Y LEE
Korean Journal of Clinical Pathology 1991;11(2):445-452
No abstract available.
Clostridium difficile*
;
Clostridium*
;
Humans
4.Vibrio Fetus Human Infection: Isolation from a Subacute Bacterial Endocarditis Case.
Yonsei Medical Journal 1970;11(2):126-130
Vibrio fetus was isolated from blood specimens of a subacute bacterial endocarditis patient. The 38 year old male patient was admitted to Severance Hospital in January 1970 for 11 days and again in July 1970 for 13 days. Subacute bacterial endocarditis was the major condtion. Aortic insufficiency and cholestatic hepatitis were the accessory diagnosis. The organism was isolated during the second admission. V. fetus human infection is known to be very rare, and the present case appears to be the first case in Korea. V. fetus grows very slowly with increased carbon dioxide tension which favours the growth. It is a slightly curved, S-shaped and spiral gram-negative organism. Many antibiotics, effective to gram negative organisms, inhibit the growth of the organism. V. fetus is an animal pathogen causing disease in ruminants. The patient enjoyed raw beef dishes. He could be infected with the organism by eating raw beef.
Adult
;
Campylobacter fetus/isolation & purification
;
Endocarditis, Subacute Bacterial/etiology
;
Endocarditis, Subacute Bacterial/microbiology*
;
Human
;
Male
;
Vibrio/isolation & purification*
;
Vibrio Infections/microbiology*
5.Vibrio cholerae serogroup non-01 septicemia in three patients with liver cirrhosis.
yunsop CHONG ; Samuel Y LEE ; Sang In LEE ; Jae Bock CHUNG ; Chae Yoon CHON ; Toshio SHIMADA
Korean Journal of Infectious Diseases 1991;23(2):117-123
No abstract available.
Humans
;
Liver Cirrhosis*
;
Liver*
;
Sepsis*
;
Vibrio cholerae*
;
Vibrio*
6.Erysipelothrix rhusiopathiae Endocarditis: A Case Report.
Yunsop CHONG ; Kap Joon YOON ; Samuel Y LEE ; Nam Sik CHUNG
Yonsei Medical Journal 1986;27(3):239-243
Erysipelothrix rhusiopathiae endocarditis in man is a very rare disease. The bacteria can be easily misiden- tified as nonpathogenic gram-positive bacilli or streptococci. This organism was isolated from blood samples taken from a 39-year-old male farmer with subacute bacterial endocarditis. The patient had cirrhosis of the liver; diabetes, and tuberculosis. The isolate showed typical cultural and biochemical characteristics such as facultative growth, formation of small greenish colonies on blood agar, positive hydrogen sulfide, negative catalase, and nonmotility. The isolate was susceptible to penicillin G and the cephalosporins.
Adult
;
Endocarditis, Subacute Bacterial/diagnosis*
;
Endocarditis, Subacute Bacterial/drug therapy
;
Erysipeloid/diagnosis*
;
Erysipeloid/drug therapy
;
Human
;
Male
7.Effect of Sodium Hypochlorite for ICU Infection Control .
Yong Aee CHUN ; Hung Kun OH ; Sung Ok KIM ; Yunsop CHUNG
Korean Journal of Anesthesiology 1978;11(2):150-156
The effects of sodium hypochlorite for the destruction of P. aeruginosa, E. coli, K. pneumonias and S. anreas and for the prevention of contamination of irrigation fluid, which is either exposed to ICU environment or used for cleansing oral or trachea catheter tips, were tested and the following results were obtained. 1) The sodium hypochlorite solution 1: 800 destroyed P. aeraginosa, E. coli, K. pneomoniue and S. aweas in 5 minutes. This bactericidal effect was observed to be retained after the solution had stood 24 hours. 2) Viable P. aeraginosa was not detected immediately, 5 minutes and 10 minutes after exposure to 1: 500, 1: 800 and 1: 1000 sodium hypochloride solutions respectively. 3) The sodium hypochlorite solution 1: 800 prevented contamination of the irrigation fluids during a 24 hour exposure to the ICU environment. 4) P. aeraginosa and other gram-negative bacilli were frequently isolated from the plain fluid used for irrigating and holding the suction tips which had been used for patients. However, no organisms were isolated from fluid containing sodium hypochlorite 1: 800 even after 24 hour usage. It is concluded that the use of fluid containing sodium hypochlorite for the irrigation of catheter tips can reduce development of infections in the ICU patients.
Catheters
;
Humans
;
Infection Control*
;
Pneumonia
;
Sodium Hypochlorite*
;
Sodium*
;
Suction
;
Trachea
8.Two Cases of Campylobacter fetus Septicemia.
Yunsop CHONG ; Yoon Chung KIM ; Samuel Y LEE ; Young Myoung MOON
Yonsei Medical Journal 1979;20(1):56-60
Campylobacter fetus subsp. intestinalis was isolated from the blood of two different patients. One patient was a 46-year-old male with liver cirrhosis and the other a 44-year-old male with co1on carcinoma. These are the second and third documented infections of this kind in Korea. Difficulties of their isolation were well illustrated. For instance, the growth was detected after a long incubation of 4 to 6 days. All of the 3 blood cultures from the carcinoma patient, but on1y 2 of 3 specimens from the other patient, yielded the organism.
Adult
;
Campylobacter/isolation & purification*
;
Campylobacter Infections/microbiology
;
Campylobacter fetus/isolation & purification*
;
Colonic Neoplasms/microbiology
;
Culture Media
;
Human
;
Liver Cirrhosis/microbiology
;
Male
;
Middle Age
;
Septicemia/microbiology*
9.Recognition of a Pseudo-Outbreak of Cladosporium Species by Continuous Monitoring of Culture Results.
Soohun YOO ; Myung Sook KIM ; Hae Sun CHUNG ; Yangsoon LEE ; Dongeun YONG ; Seok Hoon JEONG ; Kyungwon LEE ; Yunsop CHONG
Korean Journal of Nosocomial Infection Control 2010;15(1):57-63
BACKGROUND: Cladosporium spp. are dematiaceous fungi that are commonly isolated from indoor and outdoor environments, including hospital air. This fungus is rarely pathogenic to humans, but has been reported to cause infections of the skin and toenails, as well as sinusitis and pulmonary infections. The monitoring of culture results was conducted to identify the outbreak of an unknown black fungal infection between January and March 2006 in a University hospital, and infection control activity was performed to identify the cause of the outbreak. METHODS: An epidemiological investigation of 22 patients with infections caused by an unknown black fungus was conducted. Microscopic examination and molecular analysis on the internal transcript spacer (ITS) region was performed to identify the black fungus. To detect the source of contamination, a culture of environmental specimens was performed, and then, disinfection of the laboratory was implemented. RESULTS: The patients with black fungi belonged to various departments and wards. No symptoms of fungal infection were recognized on the basis of the survey. The black fungus was identified as Cladosporium spp. on the basis of morphological features and ITS region sequencing. Culturing of environmental specimens was performed in the laboratory. Black fungi were isolated from a specimen from a rack and had the same morphological features with Cladosporium spp. from clinical specimens. After the rack was autoclaved, Cladosporium spp. from clinical specimens was no longer isolated. CONCLUSION: Epidemiological investigation, microscopic examination, and molecular analysis revealed that the sudden increase in the isolation rate of Cladosporium spp. from clinical specimens was the result of a pseudo-outbreak caused by the contamination of a rack. To our knowledge, this is the first report of a pseudo-outbreak of Cladosporium spp. Continuous monitoring of culture results is important to avoid unnecessary labor for nosocomial infection control.
Cladosporium
;
Cross Infection
;
Disinfection
;
Fungi
;
Humans
;
Infection Control
;
Nails
;
Sinusitis
;
Skin
10.Yersinia pseudotuberculosis Septicemia Report of a Case.
Yunsop CHONG ; Yoon Chung KIM ; Samuel Y LEE ; Jin Kyung KANG
Yonsei Medical Journal 1980;21(1):75-79
Yersinia pseudotuberculosis is known to cause septicemia, mesenteric lymphadenitis enteritis and erythema nodosum. Most of the infections were found in European countries, but none in Korea ti11 now. For the first time in Korea Y. pseudotuberculosis was isolated form a 51-year-old ma1e with liver cirrhosis. The patient showed chills, abdominal pain and diarrhea followed by a comatose state. The organism was isolated from both blood and peritoneal fluid. The isolation and identification were difficult as the organism grew slowly and many of the characteristics were similar to other enteric bacilli. The isolate was susceptible to all antibiotics tested in vitro, but our chemotherapy with ampicillin and kanamycin did not save the patient's life.
Antibiotics/pharmacology
;
Human
;
Male
;
Middle Age
;
Septicemia/microbiology*
;
Yersinia/drug effects
;
Yersinia/isolation & purification
;
Yersinia Infections/microbiology*
;
Yersinia pseudotuberculosis Infections/microbiology*