<prompt> Following is true about C reactive protein -Detected by precipitation with cabohydrateRaised in acute pneumococcal infectionIt is antibodyDetected by agglutination test  <response>: S. pneumoniae contain a nucleoprotein deep inside the cell and a somatic C antigen. An abnormal beta globulin that precipitates with the somatic C antigen of S. pneumoniae is called CRP. It appears in acute-phase of pneumonia but disappears during convalescence. ref:Textbook of microbiology, Ananthanarayan an, Paniker. Page no.: 222 