Demographiccharacteristics

• Name

• ID number

• Gender

• Address (semi-structured)

• Phone number (free text)

Spatial information

• Current location (structured)

Epidemiological exposure

• Have you visited or stayed in communities with confirmed cases inthe last 14 days? (Yes/No)

• Have you been in contact with confirmed cases in the last 14 days？ (Yes/No)

• Have you been in contact with residents from Wuhan City or fromthe community with case reports or who have had respiratory symptoms in thelast 14 days? (Yes/No)

• Have you participated in small-scale gatherings with more than 2cases reported in the last 14 days? (Yes/No)

Physical conditions

• Today's physical condition: good/cough/runny nose/chesttightness/diarrhea/muscle soreness? (multiple choices)

• Today's body temperature?

Psychological conditions

• Did you feel nervous, fearful or anxious today? (Yes/No)

Community support

• Are there public health officials to visit you for investigation?(Yes/No)

• Were there any social workers who called you or came to your hometo help solve the reported problems? (Yes/No)

Job-seeking support

• Are you willing to work locally? (free text)

• Are you willing to participate in free skill training? (free text)