Effect of COV2 Vaccine Formulation on the Ability to Generate Antibodies Against Coronavirus That Causes COVID-19

Inclusion criteria * Has voluntarily signed the written informed consent * Male or female aged ≥18 to ≤75 years * Good general health based upon the results of the medical history, laboratory tests, physical examination, ENT clinical examination, and vital signs as assessed by the investigator * Prior vaccination with at least two doses of any COVID-19 vaccine with last dose obtained ≥180 days before the planned baseline (Day 0) visit * Has a personal smartphone, tablet or computer with internet access, and is considered willing and able to report the data in the ePRO and to comply with the reporting timelines * Willing and able to comply with the instructions to participants * Not of childbearing potential or willing and able to use a highly effective contraception method consistently and correctly during the entire trial Exclusion criteria * Pregnant, planning to become pregnant, or breastfeeding women * Received any investigational drug \< 180 days prior baseline * Antigen positivity or PCR confirmed SARS-CoV-2 infection less than 180 days apart from screening or during screening and/or baseline * Any SARS-CoV vaccination was administrated \< 180 days prior the planned baseline (Day 0) visit * Any other vaccination within 60 days prior the planned baseline (Day 0) visit * Administration of immunoglobulins or blood products within 90 days prior baseline * Current use of immunosuppressant medication (except topical and inhaled steroids, which are permitted in indications …