Table 4.

Top 10 bacterial genera for which urease genes were identified among stool samples of M. tb culture-negative and H. pylori stool-antigen negative Malians who were nevertheless positive for the oral UBT. A total of 279 distinct ureases were identified in these stool samples. The table shows the rank order of bacterial genera that contributed the highest average relative abundance of urease genes among all detected ureases.

Rank	Genus	Relative Abundance (Percent ± SD)
1	Bacillus	3.56 ± 0.34
2	Helicobacter	2.22 ± 0.49
3	Synechococcus	2.14 ± 0.13
4	Corynebacterium	1.92 ± 0.31
5	Clostridium	1.90 ± 0.37
6	Prochlorococcus	1.84 ± 0.04
7	Pseudomonas	1.74 ± 0.09
8	Paenibacillus	1.52 ± 0.14
9	Staphylococcus	1.43 ± 0.28
10	Cyanothece	1.34 ± 0.08