POC C-reactive protein testing has been shown to reduce antibiotic prescribing in UK primary care clinics for patients with chronic obstructive pulmonary disease.37 Prior studies have also suggested community antibiotic stewardship by pharmacists,38 and prescribing or social norm feedback as part of continued GP education35,39 or primary care accreditation schemes,40 as means of reducing antimicrobial prescribing. This evidence concerns the gene CRP and chronic obstructive pulmonary disease.