TABLE 3.

Summary of the 16S rRNA types and the strain origin for all strains included in this study^a

Source	No. of isolates from:		Total no. of strains
	16S rRNA type A	16S rRNA type B
Nonclinical	31	2	33
Clinical, recovery	7	7	14
Clinical, outcome unknown		2	2
Clinical, fatality	1	17	18
Total	39	28	67

^aStatistical analysis (see Results) demonstrates a strong association between strains carrying 16S rRNA type B and those causing illness or death (P < 0.0001; α = 0.05).