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Table 1 Pathogen profiles and distributions of viral agents among age groups

From: Epidemiology and clinical characteristics of acute respiratory tract infections among hospitalized infants and young children in Chengdu, West China, 2009–2014

 

< 6 months, n = 799

6 months-1 year, n = 193

1-3 years, n = 351

> 3 years, n = 421

All ages, n = 1764

No.%

Mixed

No.%

Mixed

No.%

Mixed

No.%

Mixed

No.%

Mixed

Positive

414 (51.8)a

 

130 (67.4)

 

194 (55.3)

 

162 (38.5)

 

900 (51.0)a

 

Single

297 (33.0)b

 

92 (10.2)

 

127 (14.1)

 

121 (13.4)

 

637 (70.8)b

 

Mixed

117 (13.0)c

 

38 (4.2)

 

68 (7.6)

 

40 (4.4)

 

263 (29.2)b

 

IFV

29 (3.2)b

21 (72.4)c

11 (1.2)

8 (72.7)

18 (23.1)

15 (83.3)

20 (25.6)

8 (40.0)

78 (4.4)a

52 (66.7)

RSV

212 (23.6)

69 (32.5)

61 (6.8)

27 (44.3)

82 (9.1)

29 (35.4)

46 (5.1)

24 (52.2)

401 (22.7)

149 (37.2)

PIV

91 (10.1)

47 (51.6)

42 (4.7)

23 (48.9)

61 (6.8)

30 (49.2)

42 (4.4)

16 (38.1)

236 (13.4)

116 (49.2)

ADV

29 (3.2)

22 (75.9)

25 (2.8)

10 (40.0)

33 (3.7)

20 (60.6)

23 (2.6)

9 (39.1)

110 (6.2)

61 (55.5)

HPMV

20 (2.2)

10 (50.0)

4 (0.4)

3 (75.0)

8 (0.9)

7 (87.5)

6 (0.7)

1 (16.7)

38 (2.2)

21 (55.3)

CoV

7 (0.8)

6 (85.7)

1 (0.1)

0 (0.0)

1 (0.1)

1 (100.0)

2 (0.2)

1 (50.0)

11 (0.6)

8 (72.7)

HBoV

62 (6.9)

26 (41.9)

19 (2.1)

10 (52.6)

44 (4.9)

23 (52.3)

24 (2.7)

13 (54.2)

149 (8.4)

72 (48.3)

HRV

95 (20.4)d

47 (49.4)

17 (3.7)

7 (41.2)

27 (5.8)

22 (81.5)

44 (9.5)

14 (31.8)

183 (23.0)e

90 (49.2)

  1. aCase number and percentage by age group
  2. bCase number and percentage among all positive cases
  3. cCo-infection cases of each virus detected and percentages of number of positive cases
  4. dPositive cases in the group that were analyzed for HRV was 465
  5. eHRV was analyzed in 795 samples (HRV testing was added in 2012)