Figure 4
From: Measles transmission from an anthroposophic community to the general population, Germany 2008
Number of cases and duration of clusters in kindergartens and schools per 7-day intervals and by implemented intervention. For this analysis we neither counted the first case of clusters A nor the first two cases of clusters B. Considering the latter, the day of disease onset of the second (cluster A) and third (cluster B) case, respectively, in each school and kindergarten cluster is set as 1; the days of disease onsets are categorized in 7-day intervals (n = 70).