My son who is Dec’2014 born, was given typhoid vaccine Typbar TCV in Oct’2015. Does he require a second booster dose of Tybar TCV after he completes 2 years? If yes, how frequently the re-vaccination will be required?
Also, if the second dose is Typhoid Vi-polysaccharides, how frequently will be the re-vaccination be required?
Your son will require the next booster dose after 3 years of the first typhoid conjugate vaccine dose. After that he will not need re-vaccination till after 10 years of booster dose. Typbar TCV is a conjugate vaccine which provides longer lasting immunity. If you decide to give Typhoid Vi-polysaccharide vaccine as the second dose, vaccination after every 3 years gap is required to ensure complete protection from Typhoid.