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I. AGGLUTINATION REACTION IN CHRONIC BACILLARY DYSENTERY; A SEROLOGIC AND BACTERIOLOGIC STUDY OF FORTY-SEVEN CASES

THOMAS T. MACKIE, M.D.

Arch Intern Med. 1938;62(5):783-798.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The Widal test is conceded by certain investigators to be a highly important procedure in the diagnosis of infection due to Shigella dysenteriae.¹ Agglutination of any of this group of organisms by the serum of a patient is said to warrant the diagnosis of past or present dysentery or of prophylactic vaccination, provided living antigens are not used in the performance of the test. Interpretation of the test is subject to certain well recognized sources of error. Healthy persons frequently possess normal agglutinins for S.dysenteriae.² The origin of these antibodies is uncertain. The responsible antigens are not known.³ According to Arkwright⁴ the agglutinins usually are not demonstrable in dilutions above 1: 100. Gardner,⁵ however, found that serum from normal persons may agglutinate strains of Flexner bacilli in dilutions up to 1: 150. The titer of normal agglutinins is said to be raised by such varied . . . [Full Text PDF of this Article]

Author Affiliations
Research Associate, Department of Public Health and Preventive Medicine, Cornell University Medical College; Attending Physician, the Roosevelt Hospital With the Assistance of Mildred Schweiger, M.S., and Mary S. B. Gaillard, B.S. NEW YORK

From the Department of Public Health and Preventive Medicine, Cornell University Medical College, and the Gray Laboratory, the Roosevelt Hospital.

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