inclusion criteria: * body mass index (bmi) of 18 kilograms per meter squared (kg/m\^2) to 35 kg/m\^2 (inclusive) at the screening visit. * participants must have been fully vaccinated for covid-19 primary series according to the locally authorized or approved regimen, and their last covid-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).

inclusion criteria: * body mass index (bmi) of 18 kilograms per meter squared (kg/m\^2) to 35 kg/m\^2 (inclusive) at the screening visit. * participants must have been fully vaccinated for covid-19 primary series according to the locally authorized or approved regimen, and their last covid-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).

inclusion criteria: body mass index (bmi) of 18 kilograms per meter squared (kg/m^2) to 35 kg/m^2 (inclusive) at the screening visit. participants must have been fully vaccinated for covid-19 primary series according to the locally authorized or approved regimen, and their last covid-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).

inclusion criteria: body mass index (bmi) of 18 kilograms per meter squared (kg/m^2) to 35 kg/m^2 (inclusive) at the screening visit. participants must have been fully vaccinated for covid-19 primary series according to the locally authorized or approved regimen, and their last covid-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).