Gomez, Navarro, and Kapunan: The Schick Reaction 327 
TABLE 2.—Comparison of percentage of positive Schick reactions at various 
ages. 
Park Kolmer : te 
eo Schick. og Moody.| 2nd |Bunde-| Zing or John- her fon fete: 
(9) jand Se-| (5) haw (a) (i) oes. @ ‘ans TO, and 
rota. (4) (10) a (3) 
(6) uan. 
Years. : 
Under 1_._.._. 10.2| 40 $3.3} 12 a3). eg peeeiecht 60 
te t | 65 55.5 | 48 By pees hares “Be eee 66.6 
Se ae 68.3 |) 66.8! 6451 66 50 G8) ht eee ae 43.7 
A te $222. 50 56.5 | 58 45 o,f ce Os Oo | mere 85 
th 6 35.1} 443] 57 84 21.8 ig ae 24 
8 to 10.__.__. 49.5 96.6) Oleic: thee 6 
eee 26 39 | 24 | Bl Bice, ed ae L3 
Satu 2. tee ey ee ee Be 
oe ees Resear | ep etait, nS | Verte 5 
Voi Ht 33 WOT SiS) GAR 1.1 
ae OF OVer aul gen -| & 16.6 6.3 
We desire to express to Dr. José Fabella, of the Public Welfare 
Board; Dr. Lorenzo C. Reyes, of the City of Manila; and Dr. 
Henry Pick, of Bilibid Prison, our appreciation of the courtesies 
extended to us during the performance of these tests in the 
institutions under their respective care. 
1. 
2. 
3. 
4. 
a. 
12, 
REFERENCES 
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. Scuick, B. Die Diphtherietoxin-Hautreaktion des Menschen als Vor- 
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- WRIGHT, L. T. The Schick’s test with especial reference to the Negro. 
Journ. Infect. Dis. 21 (1917) 265. 
ZINGHER, A. Methods of using diphtheria toxin in the Schick’s test and 
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