Figure 3a: Mycoplasma pneumoniae IgM testing at the Children’s Hospital at Westmead (CHW) 2014 – 2015. Text Description: Figure 4a shows a bar graph with number of IgM tests performed and number of positive tests by month from January 2014 to Decmber 2015. It shows a higher number of tests performed for each month from February to December in 2015 compared to corresponding months in 2014. Similarly a higher proportion of positive tests are observed for the same months in 2015 compared to corresponding months in 2014. The peak for tests performed was in June, 2014 and July, 2015.