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Forest plots showing the combined prevalence estimates of the four most abundant emm clusters of all included studies. (A) E3 emm cluster; (B) E6 emm cluster; (C) E4 emm cluster; (D) D4 emm cluster. Studies are represented by author, year of publication, effect size (ES) (proportion [95% CI]). n, number of isolates in cluster; N, total number of isolates in study.
