During peak clinical symptoms, 17 patients with culture proven group A streptococcal pharyngitis had less than 9% NBT-positive neutrophils. The NBT test thus does not appear to be useful in differentiating streptococcal from nonstreptococcal pharyngitis.

Topics:
dyes, neutrophils, nitroblue tetrazolium, sore throat, streptococcal
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Copyright © 1973 by the American Academy of Pediatrics
1973
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