No vaccines are required, unless you're planning to visit the difficult-to-reach Pantanal in the far eastern end of Bolivia, in which case you'll need a yellow fever vaccination certificate. Additionally, the Centers for Disease Control and Prevention (CDC) recommend that visitors to Bolivia vaccinate themselves against hepatitis A. Fortunately, since mosquitoes can't live in high altitudes, malaria is not a risk in the high plateau region of Bolivia, but there have been cases reported in rural parts of the Beni area and Santa Cruz.