Figure 1.

Number of emm59 GAS recorded cases in Canada and their geographic distribution since the beginning of the epidemic. (A) The epidemic began in year 2006 and reached its peak in 2008. By that year, cases of invasive disease were recorded over the vast majority of the country. The number of cases started to decline since 2009. However, in years 2010 and 2011, strains could still be recovered in relatively large numbers. (B) Temporospatial display of strain origin. Provinces in which emm59 GAS strains were isolated are color coded based on the number of strain isolated each year. Numbers indicate the exact number of strains isolated in a particular year in each province.