CRP and rheumatic fever: Studies assessing CRP’s performance in identifying the presence of GAS in patients presenting to primary care with sore throats or pharyngitis have produced mixed results, with some studies finding CRP predictive,14–16 whereas others have not.2,17–20 Rapid molecular tests for GAS are also being developed and have proved valuable in settings such as northern Australia, where a high burden of GAS, acute post-streptococcal glomerulonephritis, and acute rheumatic fever is evident.21