Recommended for all unvaccinated people traveling to or working in countries with an intermediate or high level of hepatitis A virus infection where exposure might occur through food or water. Cases of travel-related hepatitis A can also occur in travelers to developing countries with "standard" tourist itineraries, accommodations, and food consumption behaviors.
Recommended for all unvaccinated persons traveling to or working in countries with intermediate to high levels of endemic HBV transmission, especially those who might be exposed to blood or body fluids, have sexual contact with the local population, or be exposed through medical treatment (e.g., for an accident).
Recommended for adult travelers who have received a primary series with either inactivated poliovirus vaccine (IPV) or oral polio vaccine (OPV). They should receive another dose of IPV before departure. For adults, available data do not indicate the need for more than a single lifetime booster dose with IPV.
Recommended for travelers spending a lot of time outdoors, especially in rural areas, involved in activities such as bicycling, camping, or hiking. Also recommended for travelers with significant occupational risks (such as veterinarians), for long-term travelers and expatriates living in areas with a significant risk of exposure, and for travelers involved in any activities that might bring them into direct contact with bats, carnivores, and other mammals. Children are considered at higher risk because they tend to play with animals, may receive more severe bites, or may not report bites.
Recommended for all unvaccinated people traveling to or working in Djibouti, especially if staying with friends or relatives or visiting smaller cities, villages, or rural areas where exposure might occur through food or water.