A Phase 3 Study in India to Describe the Safety and Immunogenicity of RSVpreF

Key Inclusion Criteria: * Participants ≥18 years of age at Visit 1. * Participants who are ambulatory and live independently in the community. * Participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study. * Applicable to participants 18 through 59 years of age: Participants who are healthy or have stable preexisting diseases. These participants are considered at high risk of RSV disease by having at least 1 reportable stable chronic medical condition(s) that belongs to 1 or more of the following: * Chronic heart disease (ie, coronary artery disease, heart failure, or congenital heart disease) * Chronic lung disease (ie, COPD, emphysema, asthma, interstitial lung disease, or cystic fibrosis) * Nongestational diabetes mellitus type 1 or type 2 * Severe obesity (body mass index \[BMI\] ≥40 kg/m2) * Chronic liver disease (ie, cirrhosis) * Chronic kidney disease (not including end-stage renal disease with or without dialysis) * Chronic neurological disease that causes impaired airway clearance or respiratory muscle weakness (ie, poststroke dysphagia, amyotrophic lateral sclerosis, or muscular dystrophy) * Chronic hematologic disease (ie, sickle cell disease or thalassemia) Note: A chronic medical condition for this study is defined as: * Duration ≥6 months. * Requires regular medical follow-up or ongoing prescribed medication or hospitalization in the previous year. …