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SII-TCV (B)
- Development stage
- Unknown
- Lead developer
- Serum Institute of India
- Modality
- Vaccines & Immunotherapeutics
- Administration
- Intramuscular
01
Overview
**SII-TCV (B)** is an investigational bivalent glycoconjugate vaccine developed and manufactured by Serum Institute of India for prevention of enteric fever caused by *Salmonella enterica* serovar Typhi and *Salmonella enterica* serovar Paratyphi A. It contains *S. Typhi* Vi capsular polysaccharide conjugated to tetanus toxoid and *S. Paratyphi* A O-specific polysaccharide O:2 conjugated to diphtheria toxoid. Intramuscular vaccination is intended to induce antigen-specific anti-Vi and anti-O:2 humoral immunity, including functional bactericidal antibodies against *S. Paratyphi* A. A completed Phase I trial in healthy Indian adults found the vaccine to be safe and immunogenic; it is being evaluated in the Phase II BiVISTA controlled human infection model study in healthy UK adults. ([ora.ox.ac.uk](https://ora.ox.ac.uk/objects/uuid%3A30d77f79-da10-4995-a45a-a0a4beb02e54/files/rj38608007))
- Other names
- bivalent paratyphoid A-typhoid conjugate vaccineSerum Institute of India Typhoid Conjugate Vaccine Bivalent
02
Targets
Vi antigen (Vi capsular polysaccharide)Paratyphi A antigen (Salmonella Paratyphi A antigen)
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