Trypanosoma evansi and Trypanosomosis in Vietnam
1998 年 8 巻 3 号 p. 171-176
詳細
1998 年 8 巻 3 号 p. 171-176
The purpose of this paper is to review some the research activities on T. evansi and trypanosomosis in Vietnam from1960-1998.
1.The epidemiology of trypanosomiasis was investigated by parasitological and immunoassay techniques. It was shown that:
-Trypanosomiasis occurred all over North, Central and South Vietnam, with both acute and chronic disease in cattle and buffalo.
-Infection rates in horses were high by mouse inoculation (MI) and haematocrit centrifuge test (HCT). A greater proportion of buffalo were found infected than the cattle by MI and Antigen Detection.
-Enzyme Linked lmmunosorbent Assay (Ag-ELISA). It is possible that buffalo might be the reservoirs of the parasite.
-Abortion was a clinical sign in the pathology of trypanosomiasis in buffalo.
-In North Vietnam, differences in prevalence rates were observed in animals from mountain, intermediate and delta zones, the highest prevalence was seen in animals from intermediate, mountain zone(1990’s) and adverted with the results in 1970’s.
2. One isolate out of six isolates of T. evansi which were collected from six provinces in North and Central Vietnam was resistant to isometamidium chloride (in mice). The results that it is possible that drug resistance occurs in Vietnam and could be more common than is presently known.
3. Immunoassays that are used in Vietnam include the slide agglutination test (SAT), card agglutination test (CATT), indirect fluorescence antibody test (IFAT), enzyme linked immunosorbent assay for detection of antibody (Ab-ELISA) and enzyme linked immunosorbent assay for detection of antigen (Ag-ELISA).
