Table 2.

Mean relative abundance of detected phyla and genera by group and visit

		Controls			LAIV
Phylum		Visit 1 (%)	Visit 2 (%)	Visit 3 (%)	Visit 1 (%)	Visit 2 (%)	Visit 3 (%)
Genera (in italics)
Actinobacteria		37.46	38.94	35.42	45.97	23.52	38.96
Corynebacterium		24.89	25.75	25.16	34.44	15.40	30.86
Propionibacterium		10.29	11.09	8.00	6.66	6.21	5.35
Actinomycetales		1.41	1.62	1.60	3.09	1.42	2.16
Firmicutes		32.18	25.56	41.56	40.71	51.34	44.99
Staphylococcus		16.14	12.79	25.28	19.04	26.37	24.53
Streptococcus		1.11	2.14	0.49	8.37	4.68	4.26
Bacilli Class		2.67	2.10	4.10	3.60	4.80	4.32
Bacillales		1.87	1.37	2.74	1.85	2.56	2.55
Proteobacteria		23.91	30.29	13.34	5.28	6.92	5.01
Moraxella		11.66	22.16	10.51	0.68	0.02	0.12
Pseudomonas		7.59	3.12	0.87	0.03	1.26	0.07
Enterobacteriaceae		0.92	1.20	0.18	3.29	1.69	0.47
Bacteroidetes		1.40	0.85	0.04	2.60	7.87	4.95
Bacteroides		0.00	0.00	0.01	0.00	6.26	4.13
Cyanobacteria		1.36	1.85	1.41	1.04	3.66	3.65
Streptophyta		1.21	1.79	1.40	1.03	3.58	0.88
Fusobacteria		0.042	0.023	3.88	0.61	1.78	1.17
Phylum cumulative		96.35	97.51	95.65	96.21	95.09	98.73
Genera cumulative		79.76	85.13	80.34	82.08	74.25	79.70

The above shown are average relative abundances of the 6 most abundant phyla and 12 most abundant genera by group based on V3–V5 sequencing. Phyla are listed on the left while their corresponding genera are indented beneath. All OTUs had a ubiquity of over 90 % except Moraxella, Pseudomonas, Enterobacteriaceae, and Bacteroides. Bacteroides was notably almost exclusively present in the LAIV groups on visits 2 and 3. Cumulative genera and phyla representation is noted at the bottom