* subjects with signs of active sars-cov-2 infection at the screening visit. * subjects with body temperature of 38 degrees celsius or greater at the screening visit or within 72 hours prior to the screening visit. * subjects with a history of any progressive or severe neurological disorders, seizure, or guillain-barre syndrome. * subjects who receive immunosuppressive or cytotoxic medications. * female subjects who are pregnant or breastfeeding or have planned to become pregnant during the study period. * subjects who have a history of severe allergic reactions (e.g., anaphylaxis) to the study vaccine, any components of the study interventions, or any pharmaceutical products. * subjects who have received any other investigational products within 30 days prior to the screening visit or intend to participate in any other clinical studies during the period of this study. * subjects who have been vaccinated with any vaccine or vaccine candidate against sars-cov-2. * subjects who have received any vaccines within 28 days prior to the screening visit or intend to receive any vaccines up to 14 days after the second dose of the study injection. * subjects who have any known bleeding disorders or, in the investigator's opinion, have any contraindications for an intramuscular injection. * subjects who have received any blood, plasma, or immunoglobulin products from 90 days prior to the screening visit or intend to receive during the study period. * subjects with any condition that may increase the risk of participating in the study or may interfere with the evaluation of the primary endpoints of the study in the investigator's opinion. * subjects who have donated ≥450 ml of blood or blood products within 28 days prior to the screening visit.

* subjects with signs of active sars-cov-2 infection at the screening visit. * subjects with body temperature of 38 degrees celsius or greater at the screening visit or within 72 hours prior to the screening visit. * subjects with a history of any progressive or severe neurological disorders, seizure, or guillain-barre syndrome. * subjects who receive immunosuppressive or cytotoxic medications. * female subjects who are pregnant or breastfeeding or have planned to become pregnant during the study period. * subjects who have a history of severe allergic reactions (e.g., anaphylaxis) to the study vaccine, any components of the study interventions, or any pharmaceutical products. * subjects who have received any other investigational products within 30 days prior to the screening visit or intend to participate in any other clinical studies during the period of this study. * subjects who have been vaccinated with any vaccine or vaccine candidate against sars-cov-2. * subjects who have received any vaccines within 28 days prior to the screening visit or intend to receive any vaccines up to 14 days after the second dose of the study injection. * subjects who have any known bleeding disorders or, in the investigator's opinion, have any contraindications for an intramuscular injection. * subjects who have received any blood, plasma, or immunoglobulin products from 90 days prior to the screening visit or intend to receive during the study period. * subjects with any condition that may increase the risk of participating in the study or may interfere with the evaluation of the primary endpoints of the study in the investigator's opinion. * subjects who have donated ≥450 ml of blood or blood products within 28 days prior to the screening visit.

- subjects with signs of active sars-cov-2 infection at the screening visit. - subjects with body temperature of 38 degrees celsius or greater at the screening visit or within 72 hours prior to the screening visit. - subjects with a history of any progressive or severe neurological disorders, seizure, or guillain-barre syndrome. - subjects who receive immunosuppressive or cytotoxic medications. - female subjects who are pregnant or breastfeeding or have planned to become pregnant during the study period. - subjects who have a history of severe allergic reactions (e.g., anaphylaxis) to the study vaccine, any components of the study interventions, or any pharmaceutical products. - subjects who have received any other investigational products within 30 days prior to the screening visit or intend to participate in any other clinical studies during the period of this study. - subjects who have been vaccinated with any vaccine or vaccine candidate against sars-cov-2. - subjects who have received any vaccines within 28 days prior to the screening visit or intend to receive any vaccines up to 14 days after the second dose of the study injection. - subjects who have any known bleeding disorders or, in the investigator's opinion, have any contraindications for an intramuscular injection. - subjects who have received any blood, plasma, or immunoglobulin products from 90 days prior to the screening visit or intend to receive during the study period. - subjects with any condition that may increase the risk of participating in the study or may interfere with the evaluation of the primary endpoints of the study in the investigator's opinion. - subjects who have donated ≥450 ml of blood or blood products within 28 days prior to the screening visit.

- subjects with signs of active sars-cov-2 infection at the screening visit. - subjects with body temperature of 38 degrees celsius or greater at the screening visit or within 72 hours prior to the screening visit. - subjects with a history of any progressive or severe neurological disorders, seizure, or guillain-barre syndrome. - subjects who receive immunosuppressive or cytotoxic medications. - female subjects who are pregnant or breastfeeding or have planned to become pregnant during the study period. - subjects who have a history of severe allergic reactions (e.g., anaphylaxis) to the study vaccine, any components of the study interventions, or any pharmaceutical products. - subjects who have received any other investigational products within 30 days prior to the screening visit or intend to participate in any other clinical studies during the period of this study. - subjects who have been vaccinated with any vaccine or vaccine candidate against sars-cov-2. - subjects who have received any vaccines within 28 days prior to the screening visit or intend to receive any vaccines up to 14 days after the second dose of the study injection. - subjects who have any known bleeding disorders or, in the investigator's opinion, have any contraindications for an intramuscular injection. - subjects who have received any blood, plasma, or immunoglobulin products from 90 days prior to the screening visit or intend to receive during the study period. - subjects with any condition that may increase the risk of participating in the study or may interfere with the evaluation of the primary endpoints of the study in the investigator's opinion. - subjects who have donated ≥450 ml of blood or blood products within 28 days prior to the screening visit.