Studies on the Criteria of Readings for the Schick Test

II. The new standardized Schick solution

Abstract

This time we conducted investigations using a new Schick solution modeled after the international standards.
The results thus obtained were as follows.
1. The readings should be made on the third a day, day still more earlier than with improved solution.
2. The boundary between positive and negative reactions was likewise set on 10mm as theformer one.
3. Therefore it may be advisable to also adopt the international standards of W.H.O. for the production of the Schick solution in our country.