A Study to Learn About the Safety and Immune Response of 20vPnC in Adults in India.

Exclusion Criteria

• •History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of 20vPnC, or to any other diphtheria toxoid-containing vaccine.
• •Known or suspected immune deficiency or suppression.
• •Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
• •Previous vaccination with any pneumococcal vaccine, or planned receipt of any pneumococcal vaccine through study participation.