Are you traveling to China, Brazil, Africa, tropical South America, or even Europe? No matter where you may be going, the Centers for Disease Control and Prevention (CDC) advices that you see a doctor at least 4 to 6 weeks before you travel to find out what types of vaccines you need. There are many factors to be considered that are specific to each person including where you are traveling to within a country, the length of your trip, age, medical and vaccination history, and current health status. Consult a physician to can get all your travel vaccine-related questions answered.