TABLE 2.

Summary of potentially pathogenic bacterial sequences for bacteria in shower water and air samples from a stem cell transplant unit^a

Season	Sample	Riser	No. of sequencesb	Sequence ID	Method of detection	Class/phylum	% IDc	Nearest relative for potential pathogens
Summer	Water	A	88/247	4S_4g02	Direct extraction	Actinobacteria	99.5	Mycobacterium mucogenicum
			9/10	4S_isolate4	Culture	Actinobacteria	99.6	Mycobacterium mucogenicum
		B	19/24	11S_isolate3	Culture	Actinobacteria	99.5	Mycobacterium mucogenicum
	Aerosol	A	3/250	6S_3a07	Direct extraction	Gammaproteobacteria	99.3	Pseudomonas aeruginosa
		B	1/151	13S_2f07	Direct extraction	Alphaproteobacteria	97.6	Bosea thiooxidans
Winter	Water	C	2/8	4W_isolate2	Culture	Firmicutes	99.9	Bacillus cereus

^aSummary of potentially pathogenic bacterial sequences for bacteria, their percent ID to a known sequence in a public database, and their relative abundance in shower water or shower aerosol samples from four different hot water risers in a stem cell transplant unit during two seasons.

^bFor sequences detected by direct extraction, the number of similar sequences to the total number of sequences assessed for each season and riser is shown. For sequences detected by culture, the number of similar CFU to the the total number of CFU isolated for each season and riser is shown.

^cPercent ID values based on RDP sequence match near-neighbor identification.