there are three types of travel vaccinations that need to be considered before you travel: routine vaccines, recommended vaccines and required vaccines. taiwan seasonal flu mass vaccination program overview. creu. photo credit: james gathany, centers for disease control and prevention. \”vaccines \u0026 immunity\” — an exhibit in the studio at pacific science center \u201c. injection. tetanus shot morgans corner proving grounds 8/16/2014. healthy . lavender room. the veggie hunter.