Table 3.
Respiratory Viruses (Including Coinfections) Detected in Patients Hospitalized With Respiratory Symptoms
| Detected Virus or No. of Patients | 2011–2012 |
2012–2013 |
||||||
|---|---|---|---|---|---|---|---|---|
| Age Group, y |
Overall N = 286 | Age Group, y |
Overall N = 396 | |||||
| 18–64 n = 116 | 65–74 n = 63 | ≥75 n = 107 | 18–64 n = 92 | 65–74 n = 77 | ≥75 n = 227 | |||
| Detected virus (including coinfectionsa) | ||||||||
| Influenza A or B | 33 (28) | 14 (22) | 15 (14) | 62 (22) | 38 (41) | 29 (38) | 116 (51) | 183 (46)b |
| Influenza A | 17 (15) | 6 (10) | 5 (5) | 28 (10) | 37 (40) | 29 (38) | 116 (51) | 182 (46) |
| A/H3N2 | 7 (6) | 3 (5) | 3 (3) | 13 (5) | 34 (37) | 26 (34) | 116 (51) | 176 (44) |
| A/H1N1 | 10 (9) | 3 (5) | 2 (2) | 15 (5) | 3 (3) | 3 (4) | 0 (0) | 6 (2) |
| Influenza B | 16 (14) | 8 (13) | 10 (9) | 34 (12) | 1 (1) | 0 (0) | 0 (0) | 1 (0.3) |
| Other respiratory virus | 23 (20) | 15 (24) | 34 (32) | 72 (25) | 14 (15) | 20 (26) | 40 (18) | 74 (19)b |
| RSV | 1 (1) | 1 (2) | 11 (10) | 13 (5) | 2 (2) | 9 (12) | 15 (7) | 26 (7) |
| Enterovirus/rhinovirus | 9 (8) | 6 (10) | 4 (4) | 19 (7) | 4 (4) | 8 (10) | 14 (6) | 26 (7) |
| Coronavirusc | 4 (3) | 2 (3) | 10 (9) | 16 (6) | 5 (5) | 1 (1) | 2 (1) | 8 (2)b |
| hPIVd | 0 (0) | 0 (0) | 1 (1) | 1 (0.3) | 2 (2) | 2 (3) | 8 (4) | 12 (3) |
| hMPV | 8 (7) | 9 (14) | 10 (9) | 27 (9) | 1 (1) | 1 (1) | 2 (1) | 4 (1)b |
| Adenovirus | 1 (1) | 0 (0) | 0 (0) | 1 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| No. of patients with detection of | ||||||||
| At least 1 virus | 56 (48) | 29 (46) | 47 (44) | 132 (46) | 48 (52) | 46 (60) | 152 (67) | 246 (62)b |
| Influenza A or B | 33 (28) | 14 (22) | 14 (13) | 61 (21) | 38 (41) | 29 (38) | 116 (51) | 183 (46)b |
| Other respiratory virus | 23 (20) | 15 (24) | 33 (31) | 71 (25) | 10 (11) | 17 (22) | 36 (16) | 63 (16)b |
Data are No. (%) of cases unless specified otherwise.
Abbreviations: hMPV, human metapneumovirus; hPIV, human parainfluenza virus; RSV, respiratory syncytial virus.
a Coinfections in 2011–2012: 3 enterovirus/rhinovirus + hMPV; 1 influenza A + influenza B; 1 influenza A + coronavirus; 1 RSV + hMPV; 1 coronavirus + hMPV. Coinfections in 2012–2013: 3 influenza + RSV; 6 influenza + enterovirus/rhinovirus; 2 influenza + coronavirus; 1 RSV + hPIV; 1 enterovirus/rhinovirus + hPIV.
b P < 0.05 for the comparison between 2011–2012 and 2012–2013.
c Coronaviruses detected in 2011–2012: 10 OC43, 3 229E, 2 NL63, and 1 HKU1; in 2012–2013:7 OC43 and 1 229E.
d HPIV detected in 2011–2012: 1 type 1; 2012–2013: 1 type 1, 2 type 2, and 9 type 3.