Table 1.
Weekly incidences with 95% CIs per 100 000 children of any positive laboratory-confirmed respiratory findings in 2020 compared to weekly mean incidence of 2017–2019 among patients aged 0 to 14 years by IRR with 95% CI. Pathogens included are RSV; influenza (A & B); parainfluenza-, adeno-, and rhinoviruses; Mycoplasma pneumoniae; and Streptococcus pneumoniae. SARS-CoV-2 incidences are for patients aged 0 to 19 years.
| All respiratory pathogens |
SARS-CoV-2 |
|||||||
|---|---|---|---|---|---|---|---|---|
| 2020 |
2017–2019 |
2020 |
||||||
| Week | incidence | 95% CI | Incidence | 95% CI | IRR | 95% CI | Incidence | 95% CI |
| Pre lockdown period | ||||||||
| 1 | 44.7 | (40.4–49.3) | 40.4 | (36.3–44.7) | 1.1 | (1.0–1.3) | – | – |
| 2 | 40.8 | (36.7–45.2) | 35.7 | (31.9–39.8) | 1.1 | (1.0–1.3) | – | – |
| 3 | 51.4 | (46.8–56.4) | 44.2 | (40.0–48.7) | 1.2 | (1.0–1.3) | – | – |
| 4 | 65.0 | (59.8–70.5) | 56.0 | (51.2–61.1) | 1.2 | (1.0–1.3) | – | – |
| 5 | 79.0 | (73.2–85.1) | 62.8 | (57.8–68.2) | 1.3 | (1.1–1.4) | – | – |
| 6 | 90.5 | (84.3–97.0) | 66.8 | (61.6–72.3) | 1.4 | (1.2–1.5) | – | – |
| 7 | 97.7 | (91.3–104.4) | 74.8 | (69.3–80.6) | 1.3 | (1.2–1.4) | – | – |
| 8 | 89.4 | (83.3–95.9) | 71.0 | (65.6–76.7) | 1.3 | (1.1–1.4) | – | – |
| 9 | 78.8 | (73.0–84.8) | 65.0 | (59.9–70.5) | 1.2 | (1.1–1.4) | – | – |
| 10 | 83.0 | (77.1–89.2) | 59.0 | (54.1–64.2) | 1.4 | (1.3–1.6) | – | – |
| 11 | 72.2 | (66.7–78.0) | 53.4 | (48.8–58.4) | 1.4 | (1.2–1.5) | – | – |
| Lockdown | ||||||||
| 12 | 34.3 | (30.6–38.4) | 46.5 | (42.2–51.1) | 0.7 | (0.6–0.9) | 0.8 | (0.4–1.4) |
| 13 | 11.6 | (9.5–14.0) | 37.0 | (33.2–41.2) | 0.3 | (0.3–0.4) | 1.5 | (0.9–2.3) |
| 14 | 3.9 | (2.8–5.4) | 33.6 | (30.0–37.6) | 0.1 | (0.1–0.2) | 4.3 | (3.2–5.6) |
| 15 | 2.8 | (1.8–4.0) | 27.0 | (23.8–30.6) | 0.1 | (0.1–0.2) | 7.2 | (5.8–8.9) |
| 16 | 1.7 | (1.0–2.8) | 21.4 | (18.6–24.6) | 0.1 | (0.0–0.1) | 5.4 | (4.2–6.9) |
| 17 | 1.0 | (0.5–1.9) | 19.9 | (17.1–23.0) | 0.1 | (0.0–0.1) | 6.5 | (5.2–8.1) |
| 18 | 1.0 | (0.5–1.9) | 15.3 | (12.9–18.0) | 0.1 | (0.0–0.1) | 5.8 | (4.6–7.3) |
| 19 | 1.0 | (0.5–1.9) | 13.6 | (11.3–15.1) | 0.1 | (0.0–0.1) | 7.0 | (5.6–8.7) |
| 20 | 1.1 | (0.6–2.0) | 12.6 | (10.5–15.1) | 0.1 | (0.0–0.2) | 2.5 | (1.7–3.5) |
| Schools and day cares re-opened | ||||||||
| 21 | 0.7 | (0.3–1.4) | 11.4 | (9.3–13.7) | 0.1 | (0.0–0.1) | 2.5 | (1.7–3.5) |
| 22 | 0.6 | (0.2–1.3) | 9.6 | (7.7–11.8) | 0.1 | (0.0–0.1) | 2.8 | (2.0–3.9) |
| School summer vacations | ||||||||
| 23 | 1.1 | (0.6–2.0) | 8.8 | (7.0–10.9) | 0.1 | (0.1–0.3) | 2.3 | (1.6–3.3) |
| 24 | 0.9 | (0.4–1.7) | 8.7 | (6.9–10.8) | 0.1 | (0.1–0.2) | 1,1 | (0.6–1.8) |
| 25 | 0.8 | (0.4–1.8) | 4.8 | (3.5–6.4) | 0.2 | (0.1–0.4) | 0.3 | (0.1–0.8) |
| 26 | 1.6 | (0.9–2.6) | 5.7 | (4.3–7.4) | 0.3 | (0.2–0.5) | 0.5 | (0.2–1.1) |
| 27 | 1.6 | (0.9–2.6) | 4.3 | (3.1–5.8) | 0.4 | (0.2–0.7) | 1.0 | (0.6–1.7) |
| 28 | 1.4 | (0.8–2.3) | 4.3 | (3.1–5.8) | 0.3 | (0.2–0.6) | 0.6 | (0.3–1.2) |
| 29 | 1.6 | (0.9–2.6) | 3.0 | (2.0–4.4) | 0.5 | (0.3–1.0) | 0.9 | (0.4–1.5) |
| 30 | 2.1 | (1.3–3.2) | 3.5 | (2.4–4.9) | 0.6 | (0.3–1.1) | 1.1 | (0.6–1.8) |
| 31 | 2.5 | (1.6–3.8) | 4.2 | (3.0–5.7) | 0.6 | (0.4–1.0) | 0.8 | (0.4–1.4) |
| Day cares continued | ||||||||
| 32 | 1.7 | (1.0–2.8) | 3.9 | (2.8–5.4) | 0.4 | (0.2–0.8) | 1.1 | (0.6–1.8) |
| Schools continued | ||||||||
| 33 | 2.3 | (1.4–3.5) | 4.3 | (3.1–5.8) | 0.5 | (0.3–0.9) | 2.5 | (1.7–3.5) |
| 34 | 3.8 | (2.7–5.3) | 5.8 | (4.4–7.6) | 0.7 | (0.4–1.0) | 3.5 | (2.6–4.7) |
| 35 | 1.8 | (1.1–2.9) | 7.2 | (5.6–9.2) | 0.3 | (0.1–0.4) | 4.2 | (3.1–5.5) |