This communication was suggested by reading an article on an outbreak of tonsillitis suspected to be diphtheritic by Dr. S. A. Blauner.1 Through the courtesy of Dr. Blauner, I was enabled to study the outbreak described. I saw the last three cases in the acute shape, and made cultures from the sick and convalescent children and from many of the healthy children distributed in the different parts of the institution. The laboratory and clinical material considered together lead me to somewhat different conclusions from those drawn by Dr. Blauner. Although the results of all the laboratory examinations were sent to him, he either failed to remember them or did not interpret them as I do.
Before considering this special outbreak, it seems desirable to state the evidence which supports the view that sufficient antitoxin in the body to prevent the development of a positive Schick test under ordinary conditions
PARK WH. THE DEGREE OF IMMUNITY TO DIPHTHERIA INSURED BY A NEGATIVE SCHICK TEST. Am J Dis Child. 1921;22(1):1–6. doi:10.1001/archpedi.1921.04120010004001
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