Table 1. Detected human viruses in blood DNA of 8,240 individuals.

Virus	Number1 of individuals	Percentage of individuals	Number of sequencing reads per individual		Abundance2 of viral genomes per individual		Coverage of viral genome
			Median	Maximum	Median	Maximum	Minimum	Maximum
Human herpesvirus 7 (HHV-7)	1,678	20.37%	2	702	10	2,860	0.001	0.688
Human herpesvirus 4 (HHV-4, EBV)	1,190	14.45%	4	732,061	12	2,404,531	0.001	637.338
Anellovirus (TTV & TLMV)	734	8.91%	2	2,416	359	392,179	0.046	110.236
Human herpesvirus 6B (HHV-6B)	395	4.80%	2	26,738	9	97,274	0.001	24.74
Human herpesvirus 6A (HHV-6A)	121	1.47%	6	38,254	20	134,595	0.001	36.016
Merkel cell polyomavirus (MCPvV)	49	0.59%	2	8	236	935	0.028	0.223
Human herpesvirus 5 (HHV-5, CMV)	29	0.35%	2	106	5	338	0.001	0.067
Human T-lymphotropic virus (HTLV-1/2)	22	0.27%	13	131	820	13,143	0.034	2.251
Human papillomavirus (HPV)	173	0.19%	2	106,590	162	3,521,083	0.02	2,179.46
Human herpesvirus 1 (HHV-1, HSV-1)	10	0.12%	2	34	9	123	0.001	0.034
Human parvovirus B19	104	0.12%	167	2,841,285	19,298	302,149,810	0.028	78,459.64
Human adenovirus	9	0.11%	1	11	19	235	0.004	0.046
Human immunodeficiency virus (HIV-1/2)	5	0.06%	2	3	142	275	0.015	0.046
Human herpesvirus 8 (HHV-8, KSHV)	3	0.04%	2	4	8	17	0.002	0.004
Human polyomavirus	3	0.04%	2	4	297	588	0.061	0.122
Hepatitis B virus (HBV)	2	0.02%	3	4	460	521	0.093	0.186
Trichodysplasia spinulosa polyomavirus	1	0.01%	2	2	219	219	0.057	0.057
Hepatitis C virus (HCV)	1	0.01%	18	18	912	912	0.286	0.286
Influenza A virus	1	0.01%	4	4	3,212	3,128	0.584	0.582

¹ Some individuals may carry more than one virus.

² Abundance is estimated per 100,000 human cells.

³Four samples possibly due to cross-contamination.

⁴ Four samples possibly due to cross-contamination.