摘要：AMONG the numerous functions that the constitution of the World Health Organization enumerates, one of the most important is to promote and conduct research in the field of health. But while the World Health Organization is authorized to promote and conduct research, it prefers to promote rather than conduct. The only specific exception made by the World Health Organization is the Tuberculosis Research Office. There is, of course, a reason for this. After the war the rate of tuberculosis increased greatly among the population of the devastated countries in Europe. In order to fight this disease UNICEF engaged in mass BCG campaigns throughout the countries most affected by the war and later extended these campaigns to other areas of the world. But the experience available at that moment was based on previous campaigns in the Scandinavian countries only, and the epidemiological, environmental, and social conditions met in these other countries were widely different.
