Table 3.
Comparison of seasonal distribution of respiratory virus infection among hospitalized children with ARIs between 2018–2019 and 2020–2022
| Time | Total number of cases | Percentage of virus-positive specimens [n(%)] | Total positive cases | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ADV | RSV | Flu A | Flu B | PIV-1 | PIV-2 | PIV-3 | |||
| Winter in 2018–2019 year(12 m ~ 2 m) | 1343 | 8(0.60) | 334(24.87) | 41(3.05) | 16(1.19) | 3(0.22) | 1(0.07) | 12(0.89) | 415(30.90) |
| Winter in 2020–2022 year(12 m ~ 2 m) | 1501 | 6(0.40) | 415(27.65) | 27(1.80) | 7(0.47) | 5(0.33) | 1(0.07) | 38(2.53) | 499(33.24) |
| χ2 | 0.556 | 2.821 | 4.776 | 4.645 | 0.304 | 0.006 | 11.012 | 1.785 | |
| P | 0.456 | 0.093 | 0.029 | 0.031 | 0.581 | 0.937 | 0.001 | 0.182 | |
| Time | Total number of cases | Percentage of virus-positive specimens [n(%)] | Total positive cases | ||||||
| ADV | RSV | Flu A | Flu B | PIV-1 | PIV-2 | PIV-3 | |||
| Spring in 2018–2019 year(3 m ~ 5 m) | 1254 | 4(0.32) | 62(4.94) | 7(0.56) | 14(1.12) | 14(1.12) | 2(0.16) | 59(4.70) | 162(12.92) |
| Spring in 2020–2022 year(3 m ~ 5 m) | 997 | 3(0.30) | 49(4.91) | 0(0.00) | 5(0.50) | 2(0.20) | 1(0.10) | 4(0.40) | 64(6.42) |
| χ2 | 0.006 | 0.001 | 5.583 | 2.509 | 6.601 | 0.146 | 37.816 | 25.977 | |
| P | 0.939 | 0.974 | 0.018 | 0.113 | 0.010 | 0.702 | 0.000 | 0.000 | |
| Time | Total number of cases | Percentage of virus-positive specimens [n(%)] | Total positive cases | ||||||
| ADV | RSV | Flu A | Flu B | PIV-1 | PIV-2 | PIV-3 | |||
| Summer in 2018–2019 year (6 m ~ 8 m) | 1163 | 18(1.55) | 9(0.77) | 1(0.09) | 3(0.26) | 7(0.60) | 6(0.52) | 67(5.76) | 111(9.54) |
| Summer in 2020–2022 year(6 m ~ 8 m) | 998 | 3(0.30) | 18(1.80) | 26(2.61) | 2(0.20) | 5(0.50) | 1(0.10) | 3(0.30) | 58(5.81) |
| X2 | 8.681 | 4.616 | 27.627 | 0.077 | 0.099 | 2.875 | 51.092 | 10.381 | |
| P | 0.003 | 0.032 | 0.000 | 0.781 | 0.753 | 0.090 | 0.000 | 0.001 | |
| Time | Total number of cases | Percentage of virus-positive specimens [n(%)] | Total positive cases | ||||||
| ADV | RSV | Flu A | Flu B | PIV-1 | PIV-2 | PIV-3 | |||
| Autumn in 2018–2019 year(9 m ~ 11 m) | 1261 | 6(0.48) | 66(5.23) | 7(0.56) | 2(0.16) | 9(0.71) | 22(1.74) | 21(1.67) | 133(10.55) |
| Autumn in 2020–2022 year(9 m ~ 11 m) | 1265 | 2(0.16) | 139(10.99) | 1(0.08) | 0(0.00) | 10(0.79) | 2(0.16) | 38(3.00) | 192(15.18) |
| X2 | 2.019 | 28.040 | 4.533 | 2.008 | 0.050 | 16.891 | 4.960 | 12.079 | |
| P | 0.155 | 0.000 | 0.033 | 0.156 | 0.823 | 0.000 | 0.026 | 0.001 | |