| Value | Category | 
|---|---|
| -99 | Do not know | 
| -98 | Refuse to answer | 
| -77 | Other | 
| 1 | Fever | 
| 2 | Persistant cough | 
| 3 | Always feeling tired | 
| 4 | Muscle Pain | 
| 5 | Headache | 
| 6 | Diarrhea/Nausea/Vomiting | 
| 7 | Difficulty breathing | 
| 8 | Runny nose | 
| 9 | Sore throat | 
| 10 | Pneumonia | 
| 11 | Lose of sense of smell | 
| 12 | None of the above |