Inclusion Criteria: - In good health, as determined by the investigator based on a physical examination at screening - Body mass index (BMI) ≥ 18 and ≤ 30 kg/m^2 at screening - Afebrile, with supine systolic blood pressure (BP) ≥ 90 and ≤ 140 mmHg and supine diastolic BP ≥ 50 and ≤ 90 mmHg and heart rate ≥ 50 and ≤ 90 bpm at screening - Male participants are eligible to participate in cohorts (A1-B3).Women not of child bearing potential (WNOCBP) are eligible to participate in all cohorts (A1-B3 and C1-C2) Women of child-bearing potential (WOCBP) are only eligible for the subcutaneous (SC) cohorts (B1-B3 and C1-C2) - Must agree to follow specific methods of contraception, if applicable Exclusion Criteria: - Women who are pregnant or lactating - History of, or active, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection - Evidence of organ dysfunction or any clinically significant deviation from normal in physical examination, vital signs, echocardiogram (ECG), or clinical laboratory determinations beyond what is consistent with healthy participants - History of serious adverse reaction or hypersensitivity to any (subcutaneous) SC- or (intravenous) IV-administered biological therapeutic, including IV immunoglobulins and human blood products Other protocol-defined inclusion/exclusion criteria apply