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Distribution of ESBLs types (A) and CTX-M enzyme variants (B) identified in the environment and developed in South America. Unspecified = CTX-M enzyme present but variant unreported. *Others = Variants of CTX-M enzymes with <1% of prevalence. Pie charts are showing the maximum and minimum percentages for each country; complete information can be found in the main text and Supplementary Table 2.
