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Summary profile of day care and secondary school varicella outbreaks reported in the literature. Column 1, Izurieta et al. (63) (day care); column 2, Galil et al. (42) (day care); column 3, Buchholz et al. (16) (day care); column 4, Galil et al. (43) (day care); column 5, Lopez et al. (84) (elementary school); column 6, Parker et al. (103) (elementary school).
