Table 2.

Sets of identified taxa used in log ratio computations using Songbird method.

Feature Group	Sets	Taxa
HIV features	Set 1 top 25%	Cytophagia, Flavobacteriia, Sphingobacteriia, Bacilli, Clostridia, Nitrospira, Acidithiobacillia
	Set 2 bottom 25%	Thermoprotei, Bacteroidia, Negativicutes, Fusobacteriia, Planctomycetia, Spirochaetia; phylum Cyanobacteria
MDD features	Set 3 top 25%	Blastocatellia, Flavobacteriia, Nitrospira, Alphaproteobacteria, Deltaproteobacteria, Epsilonproteobacteria; phylum Cyanobacteria
	Set 4 bottom 25%	Thermoprotei, Coriobacteriia, Bacteroidia, Cytophagia, Negativicutes, Spirochaetia, Opitutae