Table 1. Number of detected phylotypes classified at different taxonomic levels.

Disease severity groups	Phylum	Class	Order	Family	Genus
No. of detected phylotypes	4	15	36	70	101
L1	3	14	35	63	86
L2	3	15	35	66	92
L3	3	14	31	68	87
L4	4	13	30	53	67