犬 Brucellosis에 關한 免疫學的 調査

卓練斌,孔仁貴 中央醫學社 1973 中央醫學 Vol.25 No.2

In order to know the possible prevalence of brucellosis among dogs in Taegu area, 185 sera of dogs were collected and the agglutinin titers to Brucella abortus, Br. suis and Br. canis were studied with the following results. Forty-six sera of dogs showed titers of 80 or more to either one or more antigens tested. Among them, 15 sera showed titer of 160 and 5 sera was 320 in titer. Among three antigens tested, positive sera were most frequently found to Br. canis antigen. These results suggest the existence of brucellosis, especially associated with Br. canis, among dogs.

계유내(鷄由來) Escherichia coli의 항생물질내성(抗生物質耐性)및 R 인자(因子)의 분포(分布)

탁련빈,Tak, Ryunbin 대한수의학회 1977 大韓獸醫學會誌 Vol.17 No.1

Two hundred and twenty-seven strains of Escherichia coli isolated from 25 hens (12 hens received tetracycline neomycin and sulfadimethoxine, and 13 hens not received antibiotics) were studied for the drug resistance and distribution of R factors. About 74 per cent of E. coli strains isolated from hens of a herd received antibiotics were resistance to tetracycline (TC) streptomycin (SM), chloramphenicol (CM), kanamycin (KM), ampicillin (AP) and sulfisomidine (Su), alone or in combination thereof, but only a hen among a herd not received antibiotics excreted E. coli resistant to TC and SM. Among resistant strains, about 7% were found to be resistant to TC and SM, whereas 93% were resistant to three or more antibiotics. The most common pattern was the quadruple resistant to SM, TC, KM and Su (28.7%), and followed by triple ones to SM, TC and Su (25.3%), and SM, TC and KM (24.7%). About 84% of resistant strains carried R factors which were transferable to the recipient by conjugation.

大邱地方에 있어서의 鼠의 Salmonella 保菌狀態에 對하여

卓練斌 中央醫學社 1973 中央醫學 Vol.25 No.2

One hundred and forty-three rats were caught in Taegu area in April, 1973, and /the carriage of Salmonella was studied with the following results. Eight strains of Salmonella typhiniurium° were isolated from liver, intestine and/or feces of six rats with the isolation rate of 4.2%. Four -strains were isolated by enrichment in selenite F broth, two in Gram-Negative broth and one in SS broth. Only one strain was isolated by direct culture on SS agar but non on MacConkey agar. These findings suggest that the combined enrichment in selenite F and GN broths results in the increase of isolation rate. The importance of S. typhimurium in rats for the incidence of food poisoning in man was discussed.

대구시(大邱市) 도축장(屠畜場)에서 처리(處理)된 돼지의 Salmonella 속균(屬菌)의 보균상태(保菌狀態)

탁련빈,Tak, Ryunbin 대한수의학회 1978 大韓獸醫學會誌 Vol.18 No.1

Ten strains of Salmonella were isolated from feces and lymph nodes of swine slaughtered at Daegu slaughter-house and the rate of isolation was 6.0 percent. Nine strains of Salmonella were isolated by enrichment in selenite F broth and one strain by direct culture on SS agar, but none of Salmonella were isolated from MacConkey ager and in SS broth. Among Salmonella isolated, Salmonella typhimurium occupied over half (6 strains) and the importance of Salmonella in swine for the incidence of food poisoning in man was discussed.

慶北地方 乳牛乳房炎의 疫學的 調査 및 治療對策에 關한 硏究

Ryunbin Tak(卓練斌),Young Hong Kim(金永洪),Hwa Sik Kim(金和植) 한국예방수의학회 1980 예방수의학회지 Vol.4 No.1

A total of 920 dairy cattle were examined for mastitis by California mastitis test (CMT) method. Milk samples from cattle infected with mastitis were studied bacteriologically and, among isolates, streptococci and staphylococci further examined for susceptibility to various antibiotics. The results obtained were as followings: Four hundred and seventy eight (52.0%) of 920 dairy cattle and 765(21.0%) of 3,642 quarters were positive for mastitis by CMT. It was also found that 395(85.7%) of the infected cattle were subclinical mastitis. A total of 261 strains of etiological agent were isolated from 254 quarters which showed CMT score (艹) or more. The important causative organisms were found to be Streptococcus agalactiae (34.1%) and Staphylococcus aureus (22.6%), and other streptococcus, S. epidermidis, coliform, pseudomonas, corynebacterium and yeast were also occasionally found to be causative agents. One hundred and forty five strains of streptococcus and 71 strains of staphylococcus were further examined for susceptibility to 9 antibiotics. Majority of strains were sensitive to kanamycin and leucomycin, and resistant to colistin, penicillin and streptomycin.

市販魚貝類의 腸炎비브리오 汚染狀態

Ryunbin Tak(卓練斌),Cheong Kyu Park(朴淸圭) 한국예방수의학회 1978 예방수의학회지 Vol.2 No.1

This study was carried out in order to know the distribution of Vibrio parahaemolyticus in marine specimens collected at the fishmarket in Taegu during August 1977. The rate of isolation of V. parahaemolyticus from fish and shellfish was 16.7 percent, and this organism was isolated more frequently from shellfish than from fish. Thirty-nine isolates were serotyped with K antisera from K1 through K57, and twenty. one strains were classified into 12 K types and 18 strains were nontypable. Of typed strains, K3, K11 and K57 were dominant. About one third of isolates was Kanagawa positive.

生乳의 微生物學的 硏究

Ryunbin Tak(卓練斌) 한국예방수의학회 1983 예방수의학회지 Vol.7 No.2

Microbial population of raw milk samples collected at Taegu area were enumerated by standard plate counts (SPC) and coliform counts, and 320 strains of coliform were studied the drug resistance and distribution of R factors. Total viable cells were from 1,921,000 to 9,933,000 and coliforms wete from 36,000 to 666,000 per mililiter of raw milk. In July the raw milk has highest SPC’s 22,451,000/ml and In January it has lowest SPC’s 93,000/ml. About 43 per cent of coliform strains isolated from raw milk were resistant to tetracycline (TC), streptomycine (SM), chloramphenicol (CM), ampicillin (AP) and kanamycine, alone or in combination thereof. Among the multiple resistant strains, the most common pattern was double resistant to SM and TC (14.6%), and followed by SM and CM(8.0%), and SM and AP (7.3%). About 28% of resistant strains carried R factors which were transferable to the recipient by conjugation.

動物園에서 飼育하는 各種動物의 살모넬라 屬菌分布

Ryunbin Tak(卓鍊斌) 한국예방수의학회 1982 예방수의학회지 Vol.6 No.2

The distribution of salmonellae in a variety of zoo animals including carnivores, primates, ruminants and avifauna etc. was investigated. Out of the 203 samples collected from Dalsung Park in Taegu, only 2 yielded Salmonella typhimurium from one lion and one Korean raccoon dog.

家畜 腸內細菌의 抗生物質에 對한 感受性 및 傳達性 耐性因子에 關한 硏究

Ryun Bin Tak(卓鍊斌),Young Hong Kim(金永洪),Cheong Kyu Park(朴淸圭) 한국예방수의학회 1979 예방수의학회지 Vol.3 No.1

Five hundred and nine strains of Esherichia coli isolated from domestic animals and 23 strains of Salmonella isolated from 237 pigs were tested for drug resistance and distribution of R plasmids. Seventy two per cent of E. coli strains isolated from domestic animals fed with antibiotics-containing feeds were resistant to tetracycline(TC), streptomycin(SM), chloramphenicol(CM), ampicillin(AM) and kanamycin(KM), alone or in combination thereof, but about 2% of E. coli strains isolated from domestic animals received no antitiotics were resistant to TC and SM. Among resistant strains, 45.4% were found to be singly resistant to TC, SM or KM, whereas 54.6% were resistant to two or more antibiotics. The most common resistance pattern was double resistant to TC and SM(33.7%) and followed by triple ones to TC, SM and AM(4.9%). About 67% of resistant E. coli carried R factors which were transferable to the recipients by conjugation. Seventy eight per cent of Salmonella strains isolated from pigs were resistant to TC, SM, AM, and KM, alone or in combination thereof, and the most common resistance pattern was resistant to TC and SM(38.9%) slimilary to E. coli and about one half of resistant Salmonella carried R factors. There was no difference in numbers of TC-resistant Coliform for 6 weeks after stopping administration of antibiotics, but they were decreased to one seventh at the 13th week.

Distribution of Salmonella Among Animals in Korea

Tak, Ryunbin,Chun, Doki 中央醫學社 1971 中央醫學 Vol.20 No.3

우리나라 動物에 있어서의 salmonella分布를 알고저 家鼠, 家豚, 牛, 鷄, 犬 및 山羊 各 200마리 合計 1,200例 및 糞便에서 salmonella의 分離를 試圖하였고 鷄卵殼 400例 및 卵黃 220例를 檢査하였다. 糞便에서는 25株의 salmonella가 分離되었고 卵殼에서는 3株가 分離되었다. 그중 salmonella typhimurium이 14株로 가장 많았으며 S. pullorum이 7株, S. paratyphi C와 group D의 菌이各 2株, group E의 菌이 3株였다. 動物에서의 分離率은 2.1%이며 鷄에서 5.0%로 가장 그率이 높았고 卵殼과 卵黃에서의 分離率은 極히 낮았다.