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KMID : 0353019720090020323
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Korean Journal of Public Health
1972 Volume.9 No. 2 p.323 ~ p.328
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A Review on Japanese Encephalitis Control
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Abstract
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In order to study problems involved in the prevention of Japanese Encephlitis, comprehensive analysis was conducted of research reports on Japanese Encephalitis and control of this disease dated from 1945 to the present. As a result, the following conclusion has been reached:
1) During the 12-year period from 1955 to 1966, the highest incidence rate of 18.5 per population of 100,000 was marked by North Jeolla Province. The second highest rates were recorded by Pusan City where showed an incidence rate of 12.5, South Jeolla Province showed on incidence rate of 8.9 and South Kyungsang Province showed an incidence rate of 5.3. High incidence rate were thus noted in Jeolla and Kyundsang Provinces.
2) During the 12-year period from 1955 to 1966, the age group of 5 to 9 years showed the highest incidence rate of 24.9, the second highest incidence rate of 14.1 was indicated by the age group of 0 to 4 years, and the third highest rate of 10.0 by the age group of 10 to 14 years. Thus, the age groups ranging from 0 to 14 years showed high incidence rates while incidence rates were remarkably lower in other age groups. As a whole, however, Japanese Encephalitis indicated a high fatalith rate of 33.1 percent, no significant differences were noted of fatality rate among different age groups.
3) Culex tritaeniorhynchus, the vector of Japanese Encephalitis, sucks blood from pigs in viremia condition and transfers it to human beings and other pigs. In August, when the propotion of C. t. was the highest at 55.2 percent of all the collected, Sentinel pigs were infected 100 percent. The disease began to spread among human beings from this month to reach a peak spread during September.
4) According to the results of field experiments on Japanese Encephalitis vaccine of Japanese products in 1967, the H-I posisitive rate reached 99 percent. However, Korean products of Japanese Encephalitis vaccine showed a low H-I positive rate of 75 percent.
5) In 1968, 5 million was first earmarked in budget for control of Japanese Encephalitis. In 1972, the budget amounted to 15 million, up. 300 percent over the 1968 budget. However, this increase was generally comparable to the overall increase rate of the budget of the Ministry of Health and Social Affairs as a whole.
6) Agencies controlling Japanese Encephalitis are the Public Health section of the Ministry of Health and Social Affairs which conducts administrative affairs, the Department of Virology in the National Institute of Health and the Charge of Virology in the Institute of Veterinary Research which conduct research activities, and 192 Health Centers which conduct epidemic control activities, However, adequate coordination is not maintained among different agencies.
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KEYWORD
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