Fig. 1

Patient inclusion. The figure illustrates a flowchart of patient selection. A total of 7122 cases of monospecies streptococcal BSIs were identified. Classification of species identification was unavailable in 279 cases. From the remaining 6843 cases, 65 cases had an invalid civil registration number, 272 cases were below 18 years of age, and 113 cases were infected with rare streptococcal species. BSI, bloodstream infection. Green: low-risk species (IE prevalence < 3%), yellow: moderate-risk species (IE prevalence 3–10%), orange: high-risk species (IE prevalence 10–30%), red: very high-risk species (IE prevalence > 30%)