Peter travels the world in his position on the advanced team for the secretary of state. He has likely visited as many as 20 different countries in 12 months' time and is frequently in areas where infectious diseases are far more common than in his home country, the United States. Using the CDC and the WHO as your resources, plan a strategy to keep Peter healthy. 1. What vaccinations are necessary for Peter?

2. Is there any prophylactic treatment or medications that might be identified prior to travel?

3. What other precautionary measures might be taken?

4. What economic and political factors are considered here?