ENTEROVIRUSES IN ALASKA 



00 



50 





 00 



O 50 



cr 



UJ 

 Q. 



TYPE 

 3 



TYPE 

 2 



6- II- 16-21- 26- 31- 36- 41- 46- 51- 56- 

 10 15 20 25 30 35 40 45 50 55 OVER 



AGE GROUP 

 [H TITER I'5I2-I024 g TITER I- 128-256 



^ TITER P32-64 TITER I'8-I6 



NEGATIVE n 



Figure 2. The results of a serological cross-sectional study of the population 

 of St. Lawrence Islanf, 



53 



