For antistreptolysin "O" and C-reactive protein determination, carried out in Laranjal-PR, we analyzed the serum of 411 school children aged from 5 to 16. For antistreptolysin O, 13.6% had elevated titers and 5.1% were reactive for C-reative protein. No differences related to age or sex were observed.
Antistreptolysin "O"; C-reactive protein; Rheumatic fever
