TABLE 3.

Characterization of the MID poly(G) tract in 23 M. catarrhalis strains^a

No. of G residues	No. of isolates with the following level of expression of MID:
	High	Low
3	2	1b
4		1
6	4	4b
7		1
8		2
9	7
10		1

^aBacteria were incubated with a human IgD(κ) myeloma protein followed by incubation with a secondary FITC-conjugated pAb and analysis by flow cytometry.

^bPoint mutations after the predicted signal peptide cleavage site were observed in these strains.