FIG. 4.

(A) Six spa type 33 strains with the same A2 PFGE pattern from the diversity collection, which were differentiated by clfB typing. Individual clfB types and lineages are shown. Note that all strains were also differentiated by the whole-genome microarray. Asterisks indicate clfB types that had slippage events. (B) Twelve spa type 2 strains differentiated by PFGE and clfB typing. Individual clfB types are shown by their numerical identifiers, and individual PFGE types are shown by letters (note that each unique PFGE pattern was labeled here with a separate letter). The results of PFGE and clfB typing were in 79% agreement. λ, molecular weight standard.