Each year the improvements in communication and transportation, the growing awarness that the resources of this earth are finite, the realization that the population explosion in any part of the world is a concern of all, and the increased economic interdependence of all countries, have increased importance of internationalism as opposed to nationalism. One of the first segments of our society to ignore political and geographic boundaries was that of medicine, particularly in the field of communicable diseases. Valient efforts have been made by some individuals at great personal sacrifice and...