Fig. 1. Typical patterns of glycosylation of a1-acid glycoprotein demonstrated by immunoaffinity electrophoresis in sera from (A) a patient with nontuberculous pneumonia (S. pneumoniae), (B) a healthy control, and (C) a patient with tuberculosis of the lung. Each peak represents a single subpopulation: fraction 1, nonreactive; fractions 2 and 3, weakly reactive; fraction 4, strongly reactive wi...