In Central America, cargo is transported almost entirely by road. The movement of imports and exports to and from international seaports is done by truck. Rail service is almost nonexistent and air transport serves less than one percent of the cargo generated within the Central American Common...

The handwashing handbook advocates handwashing-with-soap programs to fight the spread of disease. It covers the following components: laying the foundation for a National Handwashing Program; understanding the consumer; and implementing the program. The handbook explains how to research consumer...