Dengue vaccine group                                                                                           Control group  
Age cohort 2–5 yrs 6–11  yrs 12–17 yrs 18–45 yrs All   2–5 yrs 6–11 yrs 12–17 yrs 18–45 yrs All
N 40 40 20   20 120   20 20 10   10 60
Male/n (%) 19 (48) 23(58) 7 (35)   9 (45) 58(48)   13 (65) 13 (65) 4 (40)   5 (50) 35 (58)
Mean age/years 4.2 8.4 13.3   27.0     4.6 9.0 13.4   29.9  
BMI/kg/m2 15.3 16.3 17.9   22.7     14.5 16.5 17.8   21.4  
Baseline seropositivity/n (%)
JE 2 (5) 2 (5) 1 (5) 1(5) 6 (5)   2 (10) 4 (20) 2 (20) 0 (0) 8 (13)    
Dengue 23 (58) 28(70) 14 (70) 19(95) 85 (71)   12(60) 11 (55) 8 (80) 9 (90) 40 (67)    
Dengue or JE 26 (65) 30(75) 15 (75) 20(100) 91 (76)   14(70) 15 (75) 10 (100) 9 (90) 48 (80)    
Table 1: Baseline demographic and flavivirus status characteristics of subjects.