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Article
July 10, 1954

ITALY

JAMA. 1954;155(11):1004. doi:10.1001/jama.1954.03690290054019

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Abstract

Congress of Occupational Medicine.  —The 19th national Congress of Occupational Medicine was held in Florence. Hon. Bel Bo, the undersecretary of labor, and Senator Veraldo, a representative of the commissioner of the Italian public health service, attended the opening session. Professor Ambrosio and Dr. Mazza of Naples reported on the aspects of natural immunization in occupational poisoning. They discussed lysozyme and its relationships with resistance against infectious diseases and with natural immunity. Systematic research studies on the lysozyme in the blood of normal persons or persons with diabetes or occupational poisoning (lead, trichlorethylene, carbon sulfide, or benzene) revealed that in poisoning the lysozyme is diminished. The decrease is proportional to the number of neutrophils present in the blood, and this is especially evident in lead poisoning. They concluded that poisons not only produce lesions in various organs but also cause marked diminution of the various factors of immunity.Professor Giromini

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