Table 1: Arbitrarily selected sub-ranges of percentage positives for the schools for each antigen with colored-coded symbols. The number of participating schools per color code, the number of students tested, the number of students positive, and the range of number of students enrolled per school.

Antigen Percentage of students IgG positive per school Color Scale (Symbol, Figure 1) Number of Schools Number of Students Tested Number of Students Tested IgG Positive Range of the Number of Students Enrolled per School
CHIKV E1 0% White Circle, Figure 1A 12 223 0 71 - 528
CHIKV E1 > 0-10% Yellow Circle, Figure 1A 25 485 33 73 - 651
CHIKV E1 15-20% Red Circle, Figure 1A 5 97 17 131 - 388
Total 42 805 50
DENV-2 VLP 0-10% White Square, Figure 1B 14 272 27 105 - 651
DENV-2 VLP > 10-25% Yellow Square, Figure 1B 17 330 71 71 - 528
DENV-2 VLP > 25-66.7% Red Square, Figure 1B 11 203 98 87 - 405
Total 42 805 196
DENV-3 VLP 0-5% White Triangle, Figure 1C 16 301 13 105 - 596
DENV-3 VLP 10-20% White Triangle, Figure 1C 19 374 47 71 - 651
DENV-3 VLP > 20-66.7% White Triangle, Figure 1C 7 130 59 73 - 405
Total 42 805 119