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[Incidence and significance of the positivity of Widal's reaction in chronic active hepatitis and in liver cirrhosis].

Agglutinins to S. typhi and/or paratyphi A and B have been found in a high percentage of patients with chronic active hepatitis (54.5%) and liver cirrhosis (61.5%). The coproculture for Salmonella was constantly negative. Formulation some hypotheses able to explain these data, the Author points out the role played by the quantitative and qualitative alterations of the humoral immunity, typical of these liver diseases.