Figure 1From: Geographical and temporal distribution of human giardiasis in Ontario, CanadaMonthly distribution of giardiasis rates in southern Ontario. A plot of the monthly rates of giardiasis against time in months. The blue line, with diamond-shaped marks, is the age and sex standardized giardiasis rates. The red line, with triangle marks, is the 3-month moving average of the giardiasis rates. The black straight line is the trend line.Back to article page