Confirmed, suspected, or asymptomatic COVID-19 detected by PCR at baseline. Positive Neutralizing antibody or COVID-19 nucleocapsid antibody (N-protein) on the day of the screening visit. History of SARS-CoV-2 infection (documented rtPCR) History of contact with a person with SARS-CoV-2 infection (positive PCR test) during the last 14 days During the period of home quarantine due to Covid-19 (suspicion of exposure or suspicious symptoms). In the 14 days prior to vaccination, fever or presence of at least two symptoms from Dry cough, severe fatigue, nasal congestion, runny nose, sore throat, myalgia, diarrhoea, dyspnea, and shortness of breath Abnormality in biochemistry, blood and urine laboratory tests prior to vaccination(biochemistry including Na, K, BUN/Urea, creatinine, FBS, Liver function tests: AST, ALT, ALP, total bilirubin, CBC: leukocyte count, Hemoglobin, platelet, neutrophil. lymphocyte, urine analysis: protein, glucose and blood cells (Microscopic examination). History of severe allergy, urticaria or allergic reactions to COVID-19 Inactivated vaccine ingredients (allergic to Aluminium). Personal or family history of seizure, epilepsy, encephalopathy or mental disorders, Congenital malformations, History of neurologic disorders or seizure (excluding febrile seizure). Any genetic disorder. History or signs of malnutrition, history of growth disorders. Uncontrolled hypertension, any hepatic or renal disease, Diabetes mellitus, chronic pulmonary disease and asthma, chronic kidney disease, serious cardiovascular disorders such as congenital heart defects, arrhythmia, heart blocks, ..., any type of malignancy, thyroid disease, history of coagulation disorders. Any acute diseases or an exacerbation of a chronic disease in the last 7 days prior to study. Known case of immunodeficiency, HIV, lymphoma, leukemia, or other autoimmune diseases. Receive immunosuppressive drugs or corticosteroids in the last 6 months Splenectomy or history of any organ removal History of dermatological disorders that can cause local complications at the injection site. History of hereditary and acquired angioedema over the past year Receiving Anti-TB treatment Positive HBsAg/ Positive HCV antibody History of any substance abuse (including alcohol, opium, etc.) / Recent history of inhaled use of substances such as tobacco, cannabis, and etc Receiving immunomodulators or immunosuppressors at least 14 days in the past 3 months , Receiving live vaccine in one month or other vaccines in 14 days before inoculation Receiving any other investigational COVID-19 vaccine Receiving immunoglobulins or blood products in 3 months before inoculation Receiving any other investigational drug in 6 months before inoculation and/or planning to receive any other vaccine in one month after inoculation Participation in any interventional clinical trial within 28 days prior to receiving the first dose or willingness to participate during the present study period History of severe mental disorders affecting the participation in the study Women with a positive pregnancy test (Beta HCG in a blood sample) or breastfeeding or those who intend to become pregnant during the study period. First-degree relatives of any member of the research team (including the study sponsor) Any other circumstances are other than the above-mentioned ones that the researcher deems inappropriate for a person participating in a clinical trial. These cases are recorded as the reason for not entering.

Confirmed, suspected, or asymptomatic COVID-19 detected by PCR at baseline. Positive Neutralizing antibody or COVID-19 nucleocapsid antibody (N-protein) on the day of the screening visit. History of SARS-CoV-2 infection (documented rtPCR) History of contact with a person with SARS-CoV-2 infection (positive PCR test) during the last 14 days During the period of home quarantine due to Covid-19 (suspicion of exposure or suspicious symptoms). In the 14 days prior to vaccination, fever or presence of at least two symptoms from Dry cough, severe fatigue, nasal congestion, runny nose, sore throat, myalgia, diarrhoea, dyspnea, and shortness of breath Abnormality in biochemistry, blood and urine laboratory tests prior to vaccination(biochemistry including Na, K, BUN/Urea, creatinine, FBS, Liver function tests: AST, ALT, ALP, total bilirubin, CBC: leukocyte count, Hemoglobin, platelet, neutrophil. lymphocyte, urine analysis: protein, glucose and blood cells (Microscopic examination). History of severe allergy, urticaria or allergic reactions to COVID-19 Inactivated vaccine ingredients (allergic to Aluminium). Personal or family history of seizure, epilepsy, encephalopathy or mental disorders, Congenital malformations, History of neurologic disorders or seizure (excluding febrile seizure). Any genetic disorder. History or signs of malnutrition, history of growth disorders. Uncontrolled hypertension, any hepatic or renal disease, Diabetes mellitus, chronic pulmonary disease and asthma, chronic kidney disease, serious cardiovascular disorders such as congenital heart defects, arrhythmia, heart blocks, ..., any type of malignancy, thyroid disease, history of coagulation disorders. Any acute diseases or an exacerbation of a chronic disease in the last 7 days prior to study. Known case of immunodeficiency, HIV, lymphoma, leukemia, or other autoimmune diseases. Receive immunosuppressive drugs or corticosteroids in the last 6 months Splenectomy or history of any organ removal History of dermatological disorders that can cause local complications at the injection site. History of hereditary and acquired angioedema over the past year Receiving Anti-TB treatment Positive HBsAg/ Positive HCV antibody History of any substance abuse (including alcohol, opium, etc.) / Recent history of inhaled use of substances such as tobacco, cannabis, and etc Receiving immunomodulators or immunosuppressors at least 14 days in the past 3 months , Receiving live vaccine in one month or other vaccines in 14 days before inoculation Receiving any other investigational COVID-19 vaccine Receiving immunoglobulins or blood products in 3 months before inoculation Receiving any other investigational drug in 6 months before inoculation and/or planning to receive any other vaccine in one month after inoculation Participation in any interventional clinical trial within 28 days prior to receiving the first dose or willingness to participate during the present study period History of severe mental disorders affecting the participation in the study Women with a positive pregnancy test (Beta HCG in a blood sample) or breastfeeding or those who intend to become pregnant during the study period. First-degree relatives of any member of the research team (including the study sponsor) Any other circumstances are other than the above-mentioned ones that the researcher deems inappropriate for a person participating in a clinical trial. These cases are recorded as the reason for not entering.