Answer
It is licensed against typhoid caused by Salmonella Typhi. Reliable protection against paratyphoid has not been established, and it does not protect against Salmonella types that commonly cause diarrhoeal illness.
Sources for this answer
- Vivotif, gastro-resistant capsules — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.