TABLE 1.

Molecular characteristics of CA-MRSA isolates

StrainSourceL-C region PCR product size (kb)SCCmec subtypea
cLs1-α5cL2′-α5
CA05Chicago9.9No productIVa
8/6-3PChicagoNo product9.1IVb
2314Dallas39.6IV
  • a Classification by SCCmec IV subtype (a or b). The classification scheme used by Oliveira and de Lencastre, which uses the term SCCmec type IVA to refer to the presence of pUB110 in the I- R region of the SCCmec element (19), did not apply here.