Aged 12 to 18 years According to the protocol, the volunteer and their legal guardian be able and willing to cooperate with the researchers throughout the study period. The volunteer and/or their legal guardian are able to fully understand the executive processes of the study and to understand the explanations of the facilitators correctly. The volunteer and/or their legal guardian are able to understand the contents of the informed consent form and sign the informed consent before interring in the study. The volunteer and/or their legal guardian allow the researchers to access medical records and test results if hospitalised for any reason including due to the suspected or confirmed COVID-19. Healthy general condition according to medical history and initial medical examinations. BMI of higher than 3rd percentile according to WHO standards for child growth at visit day (day 0). Volunteers and their legal guardians agree not to donate blood, blood products, or bone marrow from the time of vaccine inoculation until 3 months after receiving the last dose of the vaccine Women with fertility potential: Negative pregnancy test on the first day of injection (day zero) and day of the second injection (day 28). Furthermore, volunteers should use the effective contraception method 28 days before the first dose and continue to use it for at least three months after the second dose.

Aged 12 to 18 years According to the protocol, the volunteer and their legal guardian be able and willing to cooperate with the researchers throughout the study period. The volunteer and/or their legal guardian are able to fully understand the executive processes of the study and to understand the explanations of the facilitators correctly. The volunteer and/or their legal guardian are able to understand the contents of the informed consent form and sign the informed consent before interring in the study. The volunteer and/or their legal guardian allow the researchers to access medical records and test results if hospitalised for any reason including due to the suspected or confirmed COVID-19. Healthy general condition according to medical history and initial medical examinations. BMI of higher than 3rd percentile according to WHO standards for child growth at visit day (day 0). Volunteers and their legal guardians agree not to donate blood, blood products, or bone marrow from the time of vaccine inoculation until 3 months after receiving the last dose of the vaccine Women with fertility potential: Negative pregnancy test on the first day of injection (day zero) and day of the second injection (day 28). Furthermore, volunteers should use the effective contraception method 28 days before the first dose and continue to use it for at least three months after the second dose.