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January 1948

TITER OF ANTISTREPTOLYSIN O IN HUMAN SERUM AND CEREBROSPINAL FLUID

Author Affiliations

BROOKLYN
From the Boston Floating Hospital and the Department of Pediatrics, Tufts College Medical School, Boston.

Am J Dis Child. 1948;75(1):65-67. doi:10.1001/archpedi.1948.02030020072006
Abstract

THE CHIEF object of this investigation was to establish whether cerebrospinal fluid of human beings contains antistreptolysin O and, if so, what quantitative relation it might have to changing serum titers of antistreptolysin O.

Twenty-eight infants and children between the ages of 7 months and 12 years, hospitalized for various illnesses, were chosen at random. Venous blood was obtained, and after a few hours of refrigeration the blood was centrifuged and the supernatant serum was stored at 4 C. (39.2 F.). Cerebrospinal fluid was taken from the patients within as short a period as possible before or after venipuncture and was also stored at 4 C. (39.2 F.).

The titers of antistreptolysin O in the serum and the cerebrospinal fluid of the patients were then determined by the method of Todd,1 as modified by Hodge and Swift2 and revised by Massell.3

Assuming a serum titer of antistreptolysin

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