Figure 2.

Prevalence of invasive Streptococcus pyogenes emm types in Canada, 2016–2020^a,b,c

^a Number of isolates for 2016, 2017, 2018, 2019 and 2020, respectively

^b Increase in 2016 and 2017 totals from previous annual reports is due to inclusion of submitted data from Alberta

^c For emm types with an overall (2016–2020) n≥30: up or down arrows indicate statistically significant trends toward increasing or decreasing prevalence for the 2016–2020 timespan, using the chi-squared test for trend. Emm types with no arrow either did not demonstrate a statistically significant trend, or did not have an overall n≥30