In the age group of 7 to 12 years, 1 (7.7%) participant had hand contamination ( Table 1) . None of the participants in the 13-to 21-year age group showed hand contamination. Four participants (10.8%) in the 22-to 50-year age group had contaminated hands, and 2 participants (14.3%) who were >51 years showed hand contamination. Contamination rates did not differ by age group.