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January 7, 1893

CONTAGION OF SCARLET FEVER.Read in the Section of Diseases of Children at the Forty-third Annual Meeting of the American Medical Association, held in Detroit, Mich., June. 1892.

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JAMA. 1893;XX(1):2-5. doi:10.1001/jama.1893.02420280010001a

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The two words, contagion and infection, are often used indiscriminately, and many a writer who starts with a definite idea of the word "contagion," will often before he gets through with what he has to say confuse it with the word "infection," and very few people who have not given the matter special study, can give the distinctive difference of definition between the two words. Our dictionaries are in the same confusing condition concerning these words. Thus: The Century Dictionary: In common use no precise discrimination of the two words "infection" and "contagion" is attempted. Webster: Infection, the transmission of affection without direct contact. In contradistinction to contagion. Billings: Contagion, capable of communication from one person to another either by actual contact or through the air. Foster: Contagion, the communication of disease from one individual to another by means of direct contact. Or as used as some writers (in the

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