A Study in India on the Immune Response and Safety of a Respiratory Syncytial Virus (RSV) Older Adults (OA) Vaccine When Given to Older Adults 60 Years of Age and Above and Adults 50-59 Years of Age at Increased Risk (AIR) of Respiratory Syncytial Virus Lower Respiratory Tract Disease (RSV-LRTD)

Inclusion Criteria: Participants, who, in the opinion of the investigator, can and will comply with the requirements of the protocol. • Written or witnessed informed consent obtained from the participant (participant must be able to understand the informed consent) prior to performance of any study-specific procedure. Specific inclusion criteria for all participants in Cohort 1 (Older adults) * Male or female, \>= 60 YOA at the time of the study intervention administration. * Participants who are medically stable in the opinion of the investigator at the time of study intervention administration. Participants with chronic stable medical conditions with or without specific treatment, such as diabetes mellitus, hypertension, or cardiac disease, are allowed to participate in this study if considered by the investigator as medically stable. * Participants living in the general community or in an assisted-living facility that provides minimal assistance can be enrolled, such that the participant is primarily responsible for self-care and activities of daily living. Specific inclusion criteria for all participants in Cohort 2 (Adults-AIR) * Male or female, 50-59 YOA at the time of the study intervention administration. * Participants should be diagnosed with at least 1 of the following medical conditions and considered medically stable by the investigator: * Chronic pulmonary disease resulting in activity restricting symptoms or use of long term medication: * Chronic obstr…