Figure 4.

Longitudinal information for the subset of 28 children with repeated isolation of the same emm type. Solid lines connect the same emm type isolated more than once; dotted lines, different emm types isolated in the 2 samples. Colors represent unique emm types, with symbols representing the type of sample (S, skin; T, throat [with symptoms]; and C, throat [without symptoms]). Each x represents a skin screening visit attended by the child during which no group A Streptococcus (GAS) was isolated, either because no sores were present, sores were present but no swab sample was obtained, or a sample was obtained but GAS did not grow.