Group A Streptococcus emm Gene Types in Pharyngeal Isolates, Ontario, Canada, 2002–2010
Patrick R. Shea, Amy L. Ewbank, Javier H. Gonzalez-Lugo, Alexandro J. Martagon-Rosado, Juan C. Martinez-Gutierrez, Hina A. Rehman, Monica Serrano-Gonzalez, Nahuel Fittipaldi, Stephen B. Beres, Anthony R. Flores, Donald E. Low, Barbara M. Willey, and James M. Musser
Author affiliations: The Methodist Hospital Research Institute, Houston, Texas, USA (P.R. Shea, A.L. Ewbank, J.H. Gonzalez-Lugo, A.J. Martagon-Rosado, J.C. Martinez-Gutierrez, H.A. Rehman, M. Serrano-Gonzalez, N. Fittipaldi, S.B. Beres, A.R. Flores, J.M. Musser); Texas Children’s Hospital, Houston (A.R. Flores); Baylor College of Medicine, Houston (A.R. Flores); Mount Sinai Hospital/University Health Network, Toronto, Ontario, Canada (D.E. Low, B.M. Willey); Ontario Agency for Health Protection and Promotion, Toronto (D.E. Low); University of Toronto, Toronto (D.E. Low)
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Figure 3
Figure 3. Frequency of emm3 strains among patients with group A Streptococcus pharyngitis and invasive disease, Ontario, Canada, 2002–2010, excluding 2004–2005. Black line indicates yearly frequency of invasive emm3 isolates; red line indicates emm3 frequency among pharyngeal isolates.
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