Significance of the Complement-fixation Test in Diagnosis of Amoebiasis in an endemic area.

An immobilization test for amoebiasis.

The demonstration of antibodies in syphilitic sera that will immobilize Treponema pallidum (Nelson and Mayer, 1949) led Cole and Kent (1953) to investigate and demonstrate that immune rabbit sera were capable of immobilizing Entamoeba histolytica, and to suggest that sera from human cases of amoebiasis might show the same phenomenon. Their rabbit sera did not show immobilizing activity to a hig...

Diagnosis of Intestinal Amoebiasis with Indirect Fluorescent Antibody Test

SUMMARY The results of direct stool examination in 102 watery and bloody diarrhea patients were compared with the presence of antibodies against Entamoeba histolytica with Indirect Fluorescent Antibody Test. Besides 22 healthy individuals included in this study as control group. It was found that 22 patients (21.5%) with a sera titre higher than 1/320 bad only 9 (8.8%) positive E. Histolytica ...

Comparison of immunodiffusion and complement fixation tests in the diagnosis of histoplasmosis.

The immunodiffusion and complement fixation tests for histoplasmosis were compared on 2,090 initial sera from 70 proven cases of histoplasmosis, 177 routine chest hospital patients, and 1,843 coal miners from outside the major endemic area for histoplasmosis. The complement fixation test using histoplasmin as antigen detected antibodies in the sera of 72.8% of the 70 proven cases, while the com...

Evaluation of Seroepidemiologic Ornithosis of Wild Pigeons in Tehran Area

For the first time in Iran, a number of 1736 sera samples of wild pigeons which were collected from different parts at Tehran, were investigated to determine the specific antiornithosis antibody using complement fixation test. In this study, 26,5 percent of samples represented ornithosis. 

Detection of rotavirus by Latex Agglutination Test (Rotales); Comparison with Electron Microscopy and Complement Fixation Test