Table 1.
Age distribution of people with VPD during the study period (11 weeks before and 39 weeks after Chinese Spring Festival)
| Disease | Year |
||||
|---|---|---|---|---|---|
| 2017 | 2018 | 2019 | Baseline (2017–2019) | 2020 | |
| Influenza, N | 6869 | 15,991 | 37,625 | 20,162 | 80,108 |
| 0–4 years,n(%) | 1512(22.01) | 3872(24.21) | 10,437(27.74) | 5274(26.16) | 17,080(21.32) |
| 5–14 years,n(%) | 3038(44.23) | 7379(46.14) | 12,255(32.57) | 7557 (37.48) | 43,082(53.78) |
| 15–24 years,n(%) | 475(6.92) | 833(5.21) | 2582(6.86) | 1297 (6.43) | 4978(6.21) |
| ≥25 years,n(%) | 1844(26.85) | 3907(24.43) | 12,351(32.83) | 6034 (29.93) | 14,968(18.68) |
| HFMD, N | 105,594 | 186,255 | 118,676 | 136,842 | 27,477 |
| 0–4 years,n(%) | 86,808(82.21) | 155,505(83.49) | 92,763(78.16) | 111,692 (81.62) | 23,254(84.63) |
| 5–14 years,n(%) | 18,296(17.33) | 29,362(15.76) | 25,155(21.20) | 24,271 (17.74) | 3923(14.28) |
| 15–24 years,n(%) | 153(0.14) | 408(0.22) | 230(0.19) | 264 (0.19) | 101(0.37) |
| ≥25 years,n(%) | 337(0.32) | 980(0.53) | 528(0.44) | 615(0.45) | 199(0.72) |
| varicella, N | 51,143 | 101,184 | 149,627 | 100,651 | 92,891 |
| 0–4 years,n(%) | 10,571(20.67) | 21,672(21.42) | 32,143(21.48) | 21,462 (21.32) | 13,824(18.30) |
| 5–14 years,n(%) | 27,997(54.74) | 54,790(54.15) | 82,766(55.31) | 55,184 (54.83) | 53,564(55.95) |
| 15–24 years,n(%) | 5726(11.20) | 10,803(10.68) | 14,826(9.91) | 10,452 (10.38) | 12,537(12.18) |
| ≥25 years,n(%) | 6849(13.39) | 13,919(13.76) | 19,892(13.29) | 13,553 (13.47) | 12,966(13.57) |
| mumps, N | 5760 | 7309 | 14,482 | 9184 | 8998 |
| 0–4 years,n(%) | 1291(22.41) | 1481(20.26) | 1774(12.25) | 1515 (16.50) | 1397(15.52) |
| 5–14 years,n(%) | 3571(62.00) | 4940(67.59) | 10,538(72.77) | 6350 (69.14) | 6316(70.19) |
| 15–24 years,n(%) | 336(5.83) | 373(5.10) | 1261(8.71) | 657 (7.15) | 660(7.33) |
| ≥25 years,n(%) | 562(9.76) | 515(7.05) | 909(6.28) | 662(7.21) | 625(6.96) |
| pertussis, N | 57 | 123 | 261 | 147 | 31 |
| 0–4 years,n(%) | 55(96.49) | 119(96.75) | 246(94.25) | 140 (95.24) | 27(87.10) |
| 5–14 years,n(%) | 2(3.51) | 4(3.25) | 13(4.98) | 6 (4.08) | 3(9.68) |
| 15–24 years,n(%) | 0(0.00) | 0(0.00) | 0(0.00) | 0 (0.00) | 0(0.00) |
| ≥25 years,n(%) | 0(0.00) | 0(0.00) | 2(0.77) | 1 (0.68) | 1(3.22) |
| hepatitis B, N | 13,791 | 13,800 | 14,603 | 14,065 | 14,021 |
| 0–4 years,n(%) | 30(0.22) | 28(0.20) | 35(0.24) | 31 (0.22) | 25(0.18) |
| 5–14 years,n(%) | 52(0.38) | 43(0.31) | 49(0.34) | 48 (0.34) | 40(0.29) |
| 15–24 years,n(%) | 654(4.74) | 569(4.12) | 496(3.40) | 573(4.07) | 502(3.58) |
| ≥25 years,n(%) | 13,055(94.66) | 13,160(95.36) | 14,023(96.03) | 13,413 (95.37) | 13,454(95.96) |