There is no specific "normal" CRP level for an infection, as CRP values can vary depending on the individual, the severity of the infection, and other factors. In general, a CRP level below 10 mg/L is considered within the normal range, indicating the absence of significant inflammation. However, during an active infection, CRP levels typically rise above this threshold. The degree of elevation can vary widely depending on the type and severity of the infection. Monitoring the trend of CRP levels over time and comparing them to the individual's baseline can often provide more valuable information in assessing the response to infection and the effectiveness of treatment.