**4. Causative organism**

*Staphylococcus aureus* was found to be the causative organism in 38 of 43 culture positive cases (88.4%) and, of those isolates, 18 (47.4%) were identified as Methicillin-resistant *Staphylococcus aureus*. In one series, the rise in recognition of DVT in their practice appeared to coincide with the establishment of USA 300 ST8 as the predominant clone of CA-MRSA in their community.6
