Abstract
Summary
Twenty-two samples of human sera were tested and 6 were positive. They gave agglutination with their own and all homologous strains used. Crossed agglutinations were seen with none, but the element of time in the method employed should be reiterated. The agglutinations were read immediately and by 30 seconds the slides were discarded. The 6 positive sera were from 3 patients with purulent otitis media, 2 of these scarlatinal, 2 patients with empyema, and one patient with paronychia and axillary adenitis.
Conclusions. In 6 of 22 samples of convalescent human sera slide agglutination with the homologous hemolytic streptococci was detectable.
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