Longitudinal monitoring reveals that
strains from both persistent and intermittent nasal carriers change over time. A representative set of persistent and intermittent carriers that have been monitored for at least one year is depicted here. (C) indicates SA nasal carriage at the time of swabbing and (N) indicates SA non-carrier state. Colors represented in the figure correspond to different Sequence Types (STs) identified by MLST. STs are segregated into different cluster groups by eBURST analysis. Carriers within the same household are grouped next to each other (indicated by * and flower bracket). (NA) corresponds to ST not available.