Vadrevu KM, Raju D, Rani S, Reddy S, et al. Persisting antibody responses to Vi polysaccharide-tetanus toxoid conjugate (Typbar TCV(R)) vaccine up to 7years following primary vaccination of children<2years of age with, or without, a booster vaccination. Vaccine 2021 Oct 5. pii: S0264-410X(21)00966.
PMID: 34625288