Some studies have suggested that because of the properties of CRP, an acute-phase protein that can rise rapidly in case of an inflammation or infection, the duration of symptoms would be associated with the discriminatory capacity of CRP.14 Patients early in the onset of a disease could present with low values of inflammatory markers despite the underlying cause, whereas the chance of an urgent condition in patients with low values of inflammatory markers after a longer duration of symptoms would decrease. Here, CRP is linked to infection.