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Household Index Casesa by Human Coronavirus (HCoV) Type and Age Group
| HCoV Type, No. (Column %) | ||||
|---|---|---|---|---|
| 229E | HKU1 | NL63 | OC43 | |
| Age group, y | ||||
| 0–5 | 13 (11.5) | 38 (26.8) | 45 (20.7) | 82 (31.2) |
| 6–11 | 21 (18.6) | 35 (25.4) | 78 (36.9) | 65 (24.7) |
| 12–17 | 16 (14.2) | 9 (6.3) | 24 (11.1) | 24 (9.1) |
| 18–49 | 54 (47.8) | 56 (39.4) | 64 (29.5) | 83 (31.6) |
| ≥50 | 9 (8.0) | 3 (2.1) | 6 (2.8) | 9 (3.4) |
aOnly index cases from the first introduction of each coronavirus type to a household per season are included.
