Preparing to meet foreign bugs. Travel, immigration, and international adoptions require special precautions.

As the world's population becomes increasingly mobile, children are more likely to be exposed to exotic and troublesome pathogens. These exposures raise concerns about protecting not only kids but the general population as well. In this article, Dr Petersen presents ways to avoid illness in children who travel to other parts of the world. She also discusses concerns about communicable disease as it relates to immigration or adoption of foreign-born children, especially those from developing nations.