As the community-wide chest x-ray survey has developed in recent years, it has become, today more than ever, a concentrated attack on tuberculosis. Through the use of the photofluorograph, we now screen entire communities—the adult population of whole cities or large metropolitan areas—and, in so doing, find tuberculosis and gather the information we need to build more effective tuberculosis control.
In the achievement of these purposes, the communitywide chest x-ray survey is based on a blending together of the efforts of all the resources, skills, interests, and knowledge of an entire community. This blending together of resource and effort becomes apparent even before the photofluorographic units begin their screening operations. It becomes apparent in the modification of local tuberculosis control resources and practices to meet the special needs of the survey—in the provision of special laboratory services to aid the physician in the essential task of diagnosis, in the provision