Table 3. Model-selected terms from data streams (ordered by frequency from top to bottom) of the Multiple Source method at state level.
The number of instances that a data stream was selected (values within parentheses) was reduced over time, given that some locations experienced less outbreak events than others.
| Onset 2 (n = 50) | Onset 3 (n = 50) | Onset 4 (n = 50) | Onset 5 (n = 36) | Onset 6 (n = 15) | Onset 7 (n = 1) |
|---|---|---|---|---|---|
| (GT) covid (50) | (GT) covid symptoms (28) | (GT) covid symptoms (27) | (GT) covid symptoms (26) | (GT) covid symptoms (10) | (GT) Nasal congestion (1) |
| (GT) covid-19 (49) | (GT) covid (21) | Confirmed cases (18) | (GT) covid (14) | Confirmed cases (9) | (GT) Pneumonia (1) |
| (GT) covid symptoms (37) | (GT) covid-19 (21) | (GT) covid (17) | (GT) Chest pain (13) | (GT) Cough (6) | (GT) Throat irritation (1) |
| (GT) chest pain (30) | (GT) chest pain (18) | (GT) Acute bronchitis (16) | Confirmed cases (11) | (GT) Hyperventilation (6) | (GT) nose bleed (1) |
| Confirmed cases (27) | (GT) fever (17) | (GT) Ageusia (15) | (GT) Cough (10) | (GT) covid (6) | (GT) Chest pain (1) |
| (GT) quarantine (20) | (GT) Acute bronchitis (16) | (GT) Nasal congestion (14) | (GT) Nasal congestion (9) | (GT) Fever (5) | (GT) Cough (1) |
| (GT) how long does covid last (18) | Confirmed cases (15) | (GT) fever (14) | (GT) Asthma (9) | (GT) Asthma (5) | |
| (GT) fever (12) | (GT) Ageusia (12) | (GT) Asthma (13) | (GT) covid-19 (9) | (GT) Chest pain (5) | |
| (GT) Acute bronchitis (11) | (GT) Anosmia (11) | (GT) covid-19 (13) | (GT) Hyperventilation (9) | twitter_state (3) | |
| (GT) chest tightness (10) | (GT) Chest pain (10) | (GT) Chest pain (12) | (GT) Bronchitis (9) | (GT) chest pain (3) |