Vidal's reaction in malaria

Abstract

Outpatients often refer patients to the typhoid ward of the clinic with a diagnosis of typhoid fever or paratyphoid fever. These diagnoses are usually based on a positive Vidal reaction. However, in a number of cases, even when Vidal's repeated serological tests gave us positive results, we recognized such patients as malarial, based on the absence of a clinical picture of typhoid and the presence of plasm in the blood, vіvах. The fact that the laboratory and clinic often encounter nonspecific agglutination reactions in the sera of various patients is, of course, not news at the present time. This has long been noted with tuberculosis (Sokolovsky, Neiman), with helminthic diseases (Esfindiev and others). We would like to emphasize this fact in malaria patients.

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