日本腦炎바이러스의 生態學的硏究 ( 1972 )

• Published in: Journal of bacteriology and virology Vol. 2; no. 1; pp. 67 - 68
• Main Authors: 신학균, 申鶴均, 정의범, 鄭義範, 김부영, 金溥榮, 송영수, 宋榮守, 김경호, 金慶浩, 이성우, 李晟雨
• Format: Journal Article
• Language: Korean
• Published: 대한바이러스학회 30.12.1972
• ISSN: 1598-2467; 2093-0429

Through the epidemic season in 1972, studies on seasonal occurrence of Japanese Encephalitis(J. E) virus among the sentinel piglets, pigs in slaugbter houses and mosquitoes were carried out in three different localities by means of the virus isolation and antibody titration. The study was also carried out the epidemiological relationship among the human cases, mosquitoes and swine infection. The results are summarized as follows: 1. Results of Hemagglutination Inhibition (H-I) antibody titration of sentinel pigs from June to September, 1972 by areas. 1) Pusan City (Veterinary Diagnosis Labolatory in Sasang County) July, 14: Positive rate 30% (It was considered as maternal immunity) July, 21: Aug 18: Positive rate 0% Aug. 25: Positive rate 22% Sept.1: Positive rate 67% Sept. 8: Positive rate 88% 2) Kwangzu City (College of Agriculture, Univ. of Jeonnam) July, 1: Positive rate 20% July, 14: Positive rate 40% Aug. 1: Aug. 25: Positive rate 0% Sept. 1: Positive rate 60% ll. Human Cases Though the first clinicaly doubtful case of J. E was early in June but epidemic outbreak was began on Sept. 8 when sentimel pigs H-I antibody titer were risen above 90 per cent. It was 2 or 3 weeks later than that of previous year. Lll. Japanese Encephalitis virus isolation 1) Japancse Encephalitis virus isolation from sentinel pigs: J.E virus strain was isolated from on pigs blood out of ten sentinel pigs in Pusan on August 26, 1972 2) Japanese Encephalitis virus isolation from mosquitoes: One J.E virus strain was isolated from 15 pools of Culex tritaeniorkyehs(C. t) mosquitoes collected at Jeollanam-Do where the highly epidemic area of J. E, 1972. Two isolated J. E virus strains are under testing for final identification.