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. 2007 Feb;13(2):298-301.
doi: 10.3201/eid1302.060989.

Postpartum mastitis and community-acquired methicillin-resistant Staphylococcus aureus

Pavani Reddy  1 , Chao Qi, Teresa Zembower, Gary A Noskin, Maureen Bolon
Affiliations

Postpartum mastitis and community-acquired methicillin-resistant Staphylococcus aureus

Pavani Reddy et al. Emerg Infect Dis. 2007 Feb.

Abstract

This single-center, case-control study documents a relative increase in methicillin resistance among 48 cases of Staphylococcus aureus-associated postpartum mastitis during 1998-2005. Of 21 cases with methicillin resistance, 17 (81%) occurred in 2005. Twenty (95%) isolates contained the Staphylococcus cassette chromosome mec type IV gene; this suggests that the increase is due to community-acquired methicillin-resistant S. aureus.

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Figures

Figure 1
Figure 1
Cases of Staphylococcus aureus–associated postpartum mastitis at a single institution, 1998–2005. Cochrane-Armitage test for linear trend suggests a relative increase in methicillin-resistant cases during the study period; p = 0.04.
Figure 2
Figure 2
A) PCR with specific primers for class B mec complex (1.3 kb) and type 2 ccr complex (1.0 kb) identifies isolates containing Staphylococcus cassette chromosome (SCC) mec type IV: lanes 1, 2, and 4–7. B) When control strains are used, PCR identifies SCCmec type II in isolate 3.
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