A study on the epidemiology of caprine anaplasmosis in Korea I. Electron microscopic characterization of the etiologic agent

산양의 anaplasmosis에 대한 역학적 연구 I.전자현미경적 연구

Evidence is presented for the isolation and characterization of Anaplasma avis in both indigenous (Korean) and exotic goats imported from Australia. These studies were carried out in response to epidemic scenario whereby farmers reported noticing what was described as a mysterious disease characterized by anemia, anorexia, general malaise and a significant morbidity and mortality rate in both types of goat breeds. The syndrome consistent with caprine anaplasmosis was associated with an intraerythrocytic agent occuring in single initial bodies characteristically surrounded by a single-layered membrane whereas the marginal body was typically surrounded by a double-layered membrane. The identity of the etiologic agent was confirmed as Anaplasma avis by light and ultrastructural microscopy.

우리나라에서 사육되고 있는 재래산양과 호주로부터 수입한 산양에서 빈혈, 식욕감퇴, 높은 발병율과 사망율을 나타내는 괴질이 발생하여, 이에 대한 원인을 밝히기 위하여 전자현미경적으로 충체를 관찰하였던 바, 적혈구내 단일막으로 위요되어 있는 기본소체와 이중막으로 둘러싸여 있는 봉입체가 관찰되었기에 이 질병의 병원체를 Anaplasma ovis로서 동정 보고하는 바이다.