Volume 21, Number 11—November 2015
Research
USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000–2013
Figure 2

Figure 2. Proportions of methicillin-resistant Staphylococcus aureus isolates, United States 2000–2013. A) USA300 strain type. B) USA100 strain type. Darker shading indicates higher proportions of types reported in studies conducted during those years.
1These authors contributed equally to this article.