Figure 1.

Global distribution of pathogenic Salmonella isolates with AcrB mutations associated with macrolide resistance. Genomes of four pathogenic Salmonella serovars—Enteritidis, Typhimurium, Typhi and Paratyphi A—present in the online database EnteroBase (downloaded May 2019) were screened for the presence of AcrB R717Q/L mutations. The countries are shaded based on the number of strains sequenced, and countries in white had no sequenced Salmonella strains. Countries from which AcrB R717Q/L-containing strains could be identified are highlighted, and the number of strains found in each country is shown as a pie chart, where the size of the pie represents the number of strains identified with mutation and colours represent the different serovars.