Table 2.
Characteristics of respiratory viruses
| Mode of transmission | Incubation period | Seasonality | |
|---|---|---|---|
| Rhinovirus | airborne/by large particle aerosol | 2–7 days | early autumn/late spring |
| Coronavirus | possibly airborne | 2–4 days | winter/early spring |
| Influenza | airborne/by small-particle aerosol | 1–4 days | winter/spring |
| RSV | large-particle aerosol/direct contact with self-inoculation | 4–5 days | autumn to spring |
| PIV | large-particle aerosol/direct contact with self-inoculation | 3–10 days | PIV1 and 2—autumn PIV3—throughout the year |
| Adenovirus | airborne/direct contact with self-inoculation | 4–14 days | late autumn/late spring |