<prompt> Which is the following isare subunit vaccinesTyphoid ViH. Influevza vaccine HibHepatitis B VaccineDiphtheria  <response>: This subunit vaccine is composed of purified VI capsular polysaccharide from the Ty2 S. Subcutaneously or intramuscularly. Stable for 6 months Only 1 dose is required and vaccine confers protection 7 days after injection. refer pgno:237 park 23 rd edition 