Created at	Source	Raw Value	Validated value
Oct. 7, 2021, 9:30 a.m.	oms	1. Age 18 years or more 2. Either Recovered from COVID-19 OR Received only the first dose of Sinovac 3. Eligible for AstraZeneca Vaccination 4. Informed consent for participation	1. Age 18 years or more 2. Either Recovered from COVID-19 OR Received only the first dose of Sinovac 3. Eligible for AstraZeneca Vaccination 4. Informed consent for participation