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The Journal of Infectious Diseases, Vol. 14: Published by the Memorial Institute for Infectious Diseases (Classic Reprint) - Brossura

Hekteon, Ludvig

 
9781334021022: The Journal of Infectious Diseases, Vol. 14: Published by the Memorial Institute for Infectious Diseases (Classic Reprint)

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Excerpt from The Journal of Infectious Diseases, Vol. 14: Published by the Memorial Institute for Infectious Diseases

The anaphylactic reaction indicates that the chemical com positions of the various members of the group are similar. I have shown7 that extracts of hemolytic streptococcus sensitize guinea-pigs to extracts of the pneumococcus and Str. Mucosas, and vice versa. Davis,8 working with heated suspensions of the various organisms, recently had similar results and concludes that the anaphylactic reaction is of little value in differentiating the various members of the streptococcus group.

It should be pointed out here, however, that pneumococci and hemolytic streptococci, for example, call forth other immunity reactions (opsonins and agglutinins) which are specific and which serve to separate them into distinct classes or types.

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