@article{astmh:/content/journals/10.4269/ajtmh.1968.17.840, author = "Powell, S. J.", title = "The Capillary-Tube Precipitin Test", journal= "The American Journal of Tropical Medicine and Hygiene", year = "1968", volume = "17", number = "6", pages = "840-843", doi = "https://doi.org/10.4269/ajtmh.1968.17.840", url = "http://www.ajtmh.org/content/journals/10.4269/ajtmh.1968.17.840", publisher = "The American Society of Tropical Medicine and Hygiene", issn = "0002-9637", type = "Journal Article", abstract = "Summary Serum from patients with amebic dysentery, amebic liver abscess, and a control group without clinical evidence of invasive amebiasis was tested by the capillary-tube and gel-diffusion precipitin methods. Comparable results were obtained. The capillary-tube precipitin technique was found to be sufficiently sensitive, specific, and reproducible for use by clinicians requiring a simple and rapid aid to diagnosis in emergencies. It could be of some value as a simple serologic test for invasive amebiasis where more advanced laboratory facilities are lacking. Satisfactory results were also obtained with a commercially prepared antigen. Wider application of diagnostic serologic tests in amebiasis is warranted should such an antigen become freely available.", }