1. Past history of new coronary pneumonia/suspected case/close contact history of new coronary patients, 2. The use of hormones, cyclosporine, immunoglobulin and other drugs that affect immunity in the past two months, 3. Contraindications to the new crown vaccination.

1. Past history of new coronary pneumonia/suspected case/close contact history of new coronary patients, 2. The use of hormones, cyclosporine, immunoglobulin and other drugs that affect immunity in the past two months, 3. Contraindications to the new crown vaccination.

1. Infection of HIV, HCV and other pathogens 2. Previous history of novel coronavirus pneumonia / suspected case / COVID-19 patient's close contact history 3. Use hormones, cyclosporine, immunoglobulin and other drugs that affect immunity in last two months 4. Contraindications of COVID-19 vaccination

1. Infection of HIV, HCV and other pathogens 2. Previous history of novel coronavirus pneumonia / suspected case / COVID-19 patient's close contact history 3. Use hormones, cyclosporine, immunoglobulin and other drugs that affect immunity in last two months 4. Contraindications of COVID-19 vaccination