Answer
No. It protects against selected pneumococcal types, and some people may have a reduced immune response. Suspected serious infection still needs prompt medical assessment.
Sources for this answer
- Pneumovax 23 solution for injection in pre-filled syringe — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.