[Mucoproteinuria in complicated scarlet fever].

Mucoproteinuria, determined by Bugard's semiquantitative method, revealed values of 100-350 mg/24 h in common scarlet fever and of 300-882 mg/24 h in scarlet fever complicated by early nephritis, pseudorheumatism and acute diffuse glomerulonephritis. These alterations appear to lend support to the recent hypothesis concerning the mucoprotein substrate of the autoimmune mechanism in the complications of streptoccal infection.