• 대한약리학회지
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• 제10권2호
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• pp.25-29
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• 1974

The present clinical trial was performed to evaluate the anthelminthic effect and tolerance of Oxantel pamoate, a new antiwhipworm agent, in the treatment of T. trichiurus infection. Oxantel pamoate oral suspension was administered as a sing1e dose of 10 mg per kg. body weight to a total of 46 T. trichiurus infected cases selected out of 64 positives, by examining 89 fecal specimens collected from the soldiers and in-patients of xx Armed Forces General Hospital. For the evaluation, the negative conversion rate (cure rate) and the egg reduction rate were assessed 22 days after the treatment. The result obtained were as follows: 1. The prevalence rate of T. trichiurus infection in this study was 71.9%, while the mean E.P.G. of 46 treated cases was 126. 2. The egg negative conversion rate was 91.3%, and 98.4% of egg reduction rate was obtained. 3. From the observation of 107 worms expelled during 3 consecutive days after the treatment, it was known that sex ratio of male and female was about 1 : 2 and that average worm burden per capita was 2.3. 4. In all treated cases, the medication was readily accepted and well tolerated. On the hemograms, urinalysis and liver function tests, no significant differences were noted before and after the drug administration. There was also no detectable objective and subjective side effect.

• Parasites, Hosts and Diseases
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• 제42권1호
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• pp.45-47
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• 2004

To investigate the infection status of pigs with Cryptosporidium parvum, 589 fecal samples were collected from pigs raised at farm in Chungcheongbuk-do and Chungcheongnam-do. Of the 589 pig fecal samples, 62 (10.5%) were positive for C. parvum. The area showing the highest positive rate was Dangjin-gun, Chungcheongnam-do (14.0%), and the lowest (0%) Salmi-myon, Chungcheongbuk-do. The positive rate of C. parvum in Judok-eup increased from 12.7% in the winter to 22.1 % in the summer. The results of this study suggest that the pigs may be a source of human C. parvum infection.

• 한국가금학회지
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• 제40권3호
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• pp.277-281
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• 2013

The experiment was undertaken to see the effects of Bacillus sp. on the growth performance and disease resistance to Salmonella sp. infections. The use of probiotic microbes in poultry is commonly practiced. In this study, Bacillus subtilis was tested using a total of 120 chicks of age of 1 day after hatching. The growth traits examined were body weight gain and feed conversion rate. And also, the Salmonella resistance of Bacillus subtilis was tested after the chicks were orally administered with Salmonella pullorum by gavage force injections. The result showed that Bacillus subtilis yielded a high feed efficiency, consequently increased growth rate. For the effect of Bacillus subtilis on Salmonella infection, Bacillus subtilis significantly improved the resistance to Salmonella pullorum infection. Various clinical symptoms of Salmonella infection were highly decreased by addition of Bacillus sp.

• 한국식물병리학회지
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• 제11권1호
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• pp.61-65
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• 1995

Photosynthetic characteristics of soybean leaves infected with Pseudomonas syringae pv. glycinea were investigated for 8 days. The difference in photosynthesis rate between healthy and diseased soybean leaves decreased for 2 to 4 days after inoculation and then increased. In respiration rate, healthy and diseased leaves showed the same tendency as photosynthetic rate. The stomatal resistance increased following Pseudomonas syringae pv. glycinea infection. The total chlorophyll content of the infected leaf was less than that of the uninfected. Pseudomonas syringae pv. glycinea infection induced the malformation of stacked grana in chloroplast. Dry matter production declined after infection.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제18권4호
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• pp.317-335
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• 2014

In this work, we investigate the global stability analysis of a viral infection model with antibody immune response. The incidence rate is given by a general function of the populations of the uninfected target cells, infected cells and free viruses. The model has been incorporated with two types of intracellular distributed time delays to describe the time required for viral contacting an uninfected cell and releasing new infectious viruses. We have established a set of conditions on the general incidence rate function and determined two threshold parameters $R_0$ (the basic infection reproduction number) and $R_1$ (the antibody immune response activation number) which are sufficient to determine the global dynamics of the model. The global asymptotic stability of the equilibria of the model has been proven by using Lyapunov theory and applying LaSalle's invariance principle.

• 한국동물위생학회지
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• 제27권2호
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• pp.165-169
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• 2004

In order to monitor the parasites, 83 fecal samples were taken from monkeys such as Cercopithecus mitis(6), Macaca fuscata(32), Saimiri sciurea(27), Macaca nigra(5), Papio hamadrysa(8), and Macaca mulatta(5) in Jeonbuk area. Isolation and Identification of the parasites from the feces were determined by the fecal examination using the floatation and microscopical examination, respectively. The detection rate was 21.6%, and mixed infection rate was single 18.0%(15 heads), double 2.4%(2 heads), and triple 1.2% (1 head). The isolates were identified as Strongyloides axei from 7 heads. Trichuris spp from 3 heads, Entamoeba histolytica 3 heads, Toxacaris leonina from 3 heads, and Eimeria spp from 2 heads.

• 보건교육건강증진학회지
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• 제19권2호
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• pp.127-138
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• 2002

Objective: This prospective survey assessed factors associated with influenza vaccination behaviors among high-risk adults. Methods: 106 patients aged 65 or high risk for complications of influenza were interviewed to identify influencing factors to vaccination. Six potential consequences of Influenza infection and nine factors of vaccination were analysed between compliance and non-compliance groups. Results: Among the 106 patients, the vaccination rate was 62.3%. The rate of the group under the sixties was 37.0010, but the rate over the sixties was 88.5%. Factors in dependently associated with both influenza vaccination behaviors included older age, chronic disease, and especially, related to factors in older age were having positive attitudes toward immunization, perceived severity of infection and willingness to comply with the provider's recommendation. Conclusions: Emphasis on provider recommendations and the knowledge and attitudes of influenza infection and vaccination may enhance influenza vaccination rates in the organized vaccination programs.

• 한국응용곤충학회지
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• 제54권4호
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• pp.419-423
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• 2015

애멸구(Laodelphax striatellus)는 rice stripe virus (RSV)의 매개충으로 벼에 큰 피해를 주는 해충이다. 본 연구에서는 애멸구의 장 단시형, 암 수, 약 성충에 대한 RSV 보독률과 이병률을 비교하였다. 애멸구의 장 단시형의 RSV 보독률은 각각 60.7%, 63.1%로 크게 차이는 없었다. 암 수에 대한 RSV 보독률은 각각 61.9%, 52.2%로 암컷의 보독률이 더 높았으나 유의성은 없었다. 약 성충의 보독률을 비교한 결과 각각 51.2%, 58.7%로 역시 크게 차이가 나지는 않았다. RSV에 감염된 애멸구에 노출된 건전한 벼의 이병률은 장시형은 53.3%, 단시형은 48.2%를 보였으며, 약 성충의 이병률은 각각 38.2%, 42.6%를 보여 유의성은 없었다. 반면 암컷은 50.5%의 이병률을 보이고 수컷은 22.3%의 이병률을 보여 암컷이 수컷에 비해 22.3% 이병률이 높아 유의성이 있었다. 또한 벼와 애멸구의 RSV 감염여부에 의한 애멸구의 발육기간은 건전한 벼에 RSV 감염 애멸구를 접종 했을 때 가장 긴 것으로 나타났으며, 건전한 벼에 건전한 애멸구를 접종 했을 때 발육기간이 가장 짧은 것으로 나타났다.

• 한국연초학회지
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• 제3권2호
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• pp.131-133
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• 1981

The hollow stalk, caused by Erwinia carotovors var. carotovora, is probaly the most devastating disease to burley tobacco in Korea. There are two modes of infection to tobacco plants: the primary infection along the plant stem from soil and the secondary one from the topped end of plants. The secondary infection rate could be reduced to almost zero by applying an antibiotic, streptomycin sulfate(400 ppm solution), right after topping.

• 한국동물위생학회지
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• 제27권2호
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• pp.139-146
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• 2004

This study was carried out to investigate the prevalence of pocine circovirus type 2(PCV2) infection and post-weaning multi systemic wasting syndrome(PMWS) of swine in Gyeongbuk province from June to December in 2003. Gyeongbuk Veterinary Service Laboratory had tested PCV1 and PCV2 by the PCR method against 210 infected pigs of 105 farms, which were requested diagnosis of disease and investigate compositive infections with bacterial disease. The following results were obtained; 1. Among 210 pigs, The pigs infected with PCV1 were 134(63.8%) heads and with PCV2 were 143(68.1%) heads. 2. Using PCR, the rate of PCV1 infection of 105 farms which were requested of diagnosis of disease is positive in 75(71.4%) farms and 78(74.3%) farms were positive in PCV2, and compositive infections of PCV1 and PCV2 were 75(71.4%) farms. 3. According to age of requested pig, the frequency of PCV infection rate was following, the pig under 4 weeks of age were 28.6% in PCV1 and PCV2, respectively, and the pig of 4-7 weeks of age were 58.6% in PCV1 and PCV2, respectively. The pig of 8-11 weeks of age were 73.1% in PCVl and 74.6% in PCV2, the pig of 12-18 weeks of age were 80.9% in PCV1 and 88.1% in PCV2. 4. In the distribution of compositive infection with bacterial disease related to PCV2 among requested samples, PCV2 infection was 39.7% in 78 cases, two kinds of compositive infection was 38.5%, three kinds of compositive infection was 18.1% and four kinds of complex infection was 3.9%.