1. Participants must be Japanese men and women and 18 to 55 years of age inclusive, at the time of signing the informed consent.2. Negative results from both SARS-CoV-2 qRT-PCR and serology tests3. Healthy by medical history, physical examination, and safety laboratorytests, according to the judgement of the investigators

1. Participants must be Japanese men and women and 18 to 55 years of age inclusive, at the time of signing the informed consent.2. Negative results from both SARS-CoV-2 qRT-PCR and serology tests3. Healthy by medical history, physical examination, and safety laboratorytests, according to the judgement of the investigators