RESULTS
We included 3,187 distinct children and nasopharyngeal samples at three time points over a 2-year period: baseline (Baseline characteristics among 1,066 asymptomatic children aged 7–11 years at baseline in the MORDOR I studyAt years 1 and 2 in the treatment and control groups, Comparing prevalence ratios and quantity differences of seven respiratory pathogens between the treatment and control groups among 2,121 children aged 7–11 years at years 1 and 2 in the MORDOR I study. Prevalence ratios compare prevalences at the later time points vs. baseline. Quantities are relative to baseline quantities.Three serotypes for Prevalence of 