New serological test for malaria antibodies.

A New Serological Test for Kala-Azar

Recently, Major R. N. Chopra, i.m.s., Pro| fessor of Pharmacology at the Calcutta School ; of Tropical Medicine, whilst carrying out some j pharmacological experiments with antimony ; compounds, noticed that when the serum from a kala-azar patient was added to certain of the pentavalent compounds of antimony a heavy precipitate was formed. He found that this precipitate was not formed if normal...

Simplified serological test for antibodies to Chlamydia trachomatis.

Three-hundred sixty sera from unselected patients attending two London venereal disease clinics were examined by a microimmunofluorescence test. Eleven egg-grown serotypes of Chlamydia trachomatis and the so-called "fast" strain SA2(f) were used as antigens. Of the 360 sera tested, 119 (33%) reacted to a titer of 1:16 or above with at least one antigen. Of these positive sera, over 50% cross-re...

Evaluation of reagin screen, a new serological test for syphilis.

A total of 1,020 serum and plasma specimens were tested using the Venereal Disease Research Laboratory (VDRL), Rapid Plasma Reagin (RPR) card, Reagin Screen (RST) and Fluorescent Treponemal Antibody-Absorption (FTA-ABS) tests. In 257 normal patients, all screening tests were nonreactive; the FTA-ABS test was reactive for one patient. In 588 patients with treated and untreated syphilis, the RST ...

A serological test for tuberculosis.

This paper describes an evaluation of the whole cell agglutination test for tuberculosist, carried out as Army Medical Directorate Research (AMDR) project 221. A !total of eighty-three cases, where the consultants were able to give a final diagnosis, are considered. The test was found to give inaccurate results in 39 per cent of cases under clinical investigation, also to show an 18 per cent fa...

Comparison of Micro Neutralization Test with Hemadsorption-Inhibition Test, and Immunoflrorescence Technique for Detecting Mumps Antibodies