The Fluorescent Antibody Test in the Serological Diagnosis of the Causative Organisms of Tropical Eosinophilia and Filariasis

Abstract
The results of the fluorescent antibody test with sera from tropical eosinophilia and filariasis cases tested against four species of microfilariae are reported. The majority of sera from both groups showed the presence of antibody to the human parasite W. bancrofti. In the filarial group only those with clinically active disease of short duration showed a positive fluorescence reaction. Some sera of both groups reacted positively with microfilariae of the animal parasites B. ceylonensis and Setaria sp. These were species specific reactions as seen by diminished or absence of fluorescence after absorption of specific antibody.

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