Department of Pathobiology, School of Medicine, University of Isfahan, School of Public Health and Institute of Public Health Research, University of Teheran, Center for Disease Control, Public Health Service, U. S. Department of Health, Education, and Welfare, Department of Pathobiology, School of Hygiene and Public Health, The Johns Hopkins University, Atlanta, Georgia 30333, Iran
Fifty-one patients with surgically proven hydatid disease were examined with the intradermal (ID) (Casoni) and latex-agglutination (LA) tests. Before surgery, results of the former test were 80.4% positive and of the latter were 82.3%. For 105 persons who were diagnosed free of hydatid cysts by surgical, clinical, and serological observations, 6.7% were positive with the ID test and 4.8% with the LA test. The close agreement between results obtained with the LA and ID tests in this selected group of patients suggests that the LA test merits further evaluation as a diagnostic tool.