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Table 1 The prevalence of each respiratory virus detected in each sampling site using PCR

From: Respiratory virus detection in the upper respiratory tract of asymptomatic, community-dwelling older people

 

NP

(n = 504)

OP

(n = 504)

Saliva

(n = 504)*

Prevalence

(n = 504)

 

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

n

% (95% CI)

Rhinovirus

26

5.2 (3.4–7.5)

31

6.2 (4.2–8.6)

33

6.5 (4.5–9.1)

65

12.9 (10.1–16.1)

Influenza A

12

2.4 (1.2–4.1)

13

2.6 (1.4–4.4)

19

3.8 (2.3–5.8)

36

7.1 (5.1–9.8)

Enterovirus

13

2.6 (1.4–4.4)

11

2.2 (1.1–3.9)

25

5.0 (3.2–7.2)

35

6.9 (4.9–9.5)

RSV

3

0.6 (0.1–1.7)

3

0.6 (0.1–1.7)

2

0.4 (0.0–1.4)

8

1.6 (0.7–3.1)

hMPV

0

0.0 (0.0–0.7)

4

0.8 (0.2–2.0)

2

0.4 (0.0–1.4)

6

1.2 (0.4–2.6)

HCoV

1

0.2 (0.0–1.1)

1

0.2 (0.0–1.1)

1

0.2 (0.0–1.1)

1

0.2 (0.0–1.1)

Influenza B

0

0.0 (0.0–0.7)

0

0.0 (0.0–0.7)

1

0.2 (0.0–1.1)

1

0.2 (0.0–1.1)

PIV–2

0

0.0 (0.0–0.7)

0

0.0 (0.0–0.7)

1

0.2 (0.0–1.1)

1

0.2 (0.0–1.1)

PIV–3

1

0.2 (0.0–1.1)

0

0.0 (0.0–0.7)

0

0.0 (0.0–0.7)

1

0.2 (0.0–1.1)

Any virus

47

9.3 (6.9–12.2)

56

11.1 (8.5–14.2)

74

14.7 (11.7–18.1)

127

25.2 (21.5–29.2)

  1. *A saliva sample could not be collected from one participant, and the saliva result was considered negative when calculating the prevalence of virus positivity. NP nasopharyngeal, OP oropharyngeal, Prevalence the prevalence of PCR positivity, 95% CI 95% confidence interval, RSV respiratory syncytial virus, hMPV human metapneumovirus, HCoV common human coronavirus, PIV-2 parainfluenza virus type 2, PIV-3 parainfluenza virus type 3