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Table 2 Age distribution of viruses from outpatients with ARIs

From: Clinical characteristics and viral etiologies of outpatients with acute respiratory infections in Huzhou of China: a retrospective study

Viruses < 5 years (N = 84) (%) 5~18 years (N = 139) (%) 18~60 years (N = 161) (%) ≥60 years (N = 42) (%) Total (N = 426) (%)
Single infection 55 (65.5) 83 (59.7) 62 (38.5) 21 (50.0) 221 (51.9)
FluA 13 (15.5) 36 (25.9) 40 (24.8) 16 (38.1) 105 (24.6)
sH1N1 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
sH3N2 10 (11.9) 21 (15.1) 25 (15.5) 7 (16.7) 63 (14.8)
H1N1(2009) 3 (3.6) 15 (10.8) 15 (9.3) 9 (21.4) 42 (9.9)
EV 15 (17.9) 5 (3.6) 2 (1.2) 1 (2.4) 23 (5.4)
FluB 4 (4.8) 11 (7.9) 4 (2.5) 0 (0) 19 (4.5)
ADV 2 (2.4) 9 (6.5) 7 (4.3) 0 (0) 18 (4.2)
RhV 3 (3.6) 9 (6.5) 3 (1.9) 2 (4.8) 17 (4.0)
PIV 8 (9.6) 3 (2.1) 2 (1.2) 0 (0) 13 (3.0)
PIV-1 4 (4.8) 0 (0) 0 (0) 0 (0) 4 (0.9)
PIV-2 3 (3.6) 2 (1.4) 2 (1.2) 0 (0) 7 (1.6)
PIV-3 1 (1.2) 1 (0.7) 0 (0) 0 (0) 2 (0.5)
PIV-4 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
hMPV 4 (4.8) 7 (5.0) 0 (0) 1 (2.4) 12 (2.8)
RSV 6 (7.2) 2 (1.4) 2 (1.2) 1 (2.4) 11 (2.5)
RSV-A 3 (3.6) 1 (0.7) 0 (0) 0 (0) 4 (0.9)
RSV-B 3 (3.6) 1 (0.7) 2 (1.2) 1 (2.4) 7 (1.6)
Cov 0 (0) 1 (0.7) 2 (1.2) 0 (0) 3 (0.7)
CoV-OC43/HKU1 0 (0) 1 (0.7) 2 (1.2) 0 (0) 3 (0.7)
CoV-229E/NL63 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
BoV 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
Coinfections 8 (9.5) 6 (4.3) 6 (3.7) 5 (11.9) 25 (5.9)
RhV + sH3N2 3 (3.6) 1 (0.7) 1 (0.6) 2 (4.8) 7 (1.6)
RhV + EV 0 (0) 3 (2.2) 0 (0) 0 (0) 3 (0.7)
RhV + ADV 0 (0) 0 (0) 3 (1.9) 0 (0) 3 (0.7)
RhV + PIV-4 0 (0) 1 (0.7) 2 (1.2) 0 (0) 3 (0.7)
ADV + hMPV 2 (2.4) 0 (0) 0 (0) 0 (0) 2 (0.5)
ADV + RSV-B 2 (2.4) 0 (0) 0 (0) 0 (0) 2 (0.5)
FluB+PIV-3 0 (0) 0 (0) 0 (0) 2 (4.8) 2 (0.5)
sH3N2 + CoV-229E/NL63 1 (1.2) 0 (0) 0 (0) 0 (0) 1 (0.2)
sH3N2 + PIV-4 0 (0) 1 (0.7) 0 (0) 0 (0) 1 (0.2)
sH3N2 + EV 0 (0) 0 (0) 0 (0) 1 (2.4) 1 (0.2)
Total positive cases 63 (75.0) 89 (64.0) 68 (42.2) 26 (61.9) 246 (57.7)
  1. ARIs, acute respiratory infections