Typhoid (Vivotif Ty21a) February 28, 2019 admin Vaccines 0 Vaccine IngredientsIn addition to the live, attenuated or inactive virus, pathogen or toxoid, the Typhoid (Vivotif Ty21a) vaccine contains the following ingredients:yeast extractcaseindextrosegalactosesucroseascorbic acidamino acidslactosemagnesium stearategelatinSource: CDCView manufacturer's package insert