Table 3 Clinical characteristics of CMV-IgG+, CMV-IgM+ and CMV-NAT+ in blood from healthy donors. The IgG and IgM antibodies of CMV in the blood samples were measured by ELISA. CMV DNA was detected by quantitative real-time PCR. No significant differences in the positivity rates were detected among sex, age, residence, profession and ethnicity. Of the 2986 positive samples (IgG or IgM), the positive rate of CMV-IgG, CMV-IgM and both CMV-IgG and CMV-IgM was 46.25%, 5.82%, 0.07%, respectively. Decreased CMV DNA was noted in the positive specimens (7.56 × 102 to 3.58 × 103 copies/mL). The positive rate of CMV-IgG was 78.91% in age 45–55 group, it’s higher than other age groups.

From: Metagenomic analysis and identification of emerging pathogens in blood from healthy donors

Category

Columns

Total

n

CMV-IgG+

n (%)

CMV-IgM+

n (%)

Total (+)

IgG+ or IgM+

n (%)

IgG+ and IgM+

n (%)

Real-time PCR

CMV-NAT+

n (%)

Gender

Male

3214

1215 (37.80)

244 (7.59)

1459 (45.40)

1 (0.03)

5 (0.16)

Female

2520

1437 (57.02)

90 (3.57)

1527 (60.60)

3 (0.12)

16 (0.63)

Total

5734

2652 (46.25)

334 (5.82)

2986 (52.08)

4 (0.07)

21 (0.37)

Age

18–24

1461

494 (33.81)

22 (1.51)

516 (35.32)

0

2 (0.14)

25–34

1708

552 (32.32)

155 (9.07)

707 (41.39)

3 (0.18)

9 (0.53)

35–44

1432

712 (49.72)

117 (8.17)

829 (57.89)

1 (0.07)

7 (0.49)

45–55

1133

894 (78.91)

40 (3.53)

934 (82.44)

0

3 (0.26)

Marital status

Married

2927

1791 (61.19)

132 (4.51)

1823 (62.28)

2 (0.07)

12 (0.41)

Unmarried

2604

719 (27.61)

168 (6.45)

1077 (41.36)

2 (0.08)

8 (0.30)

Unknown

203

52 (25.62)

34 (16.75)

86 (42.36)

0

1 (0.49)

Education

Masters degree

893

402 (45.02)

45 (5.04)

487 (54.54)

0

2 (0.22)

Undergraduate

1416

583 (41.17)

38 (2.68)

721 (50.92)

2 (0.14)

5 (0.35)

College Diploma

1121

498 (44.42)

45 (12.93)

643 (57.36)

1 (0.09)

5 (0.45)

Under high-school

1198

531 (44.32)

184 (15.36)

815 (68.03)

1 (0.09)

6 (0.50)

Unknown

1106

638 (57.68)

22 (1.99)

880 (79.57)

0

3 (0.27)

  1. In this blood donor population, 21 CMV DNA-reactive samples were found by real-time PCR, accounting for 0.37% (21/5734), and the positive rate of both CMV-IgG and -IgM was 0.07% (4/5734).