Blood CRP is hypersensitivity reactive protein, also known as C-reactive protein, which is an acute time-phase reactive protein due to a small molecular weight protein produced by the liver in an acute reaction. When the body has an acute inflammatory response, the concentration of this protein will increase rapidly in a short period of time, so through C-reactive protein, it is possible to check for acute inflammatory diseases in the body. In acute infections, especially bacterial infections, C-reactive protein increases significantly, while in viral infections C-reactive protein does not increase, so this is a common test to distinguish between viral and bacterial infections. When the body has an acute injury, such as a patient with an acute myocardial infarction, or after a large burn, it will also stimulate a significant increase in C-reactive protein. When there is a tuberculosis infection, C-reactive protein increases significantly, and when the tuberculosis bacillus is controlled, the concentration of C-reactive protein decreases significantly, which is also a common indicator to observe the effect of tuberculosis treatment.