Popis: |
AS the program for the control of tuberculosis grows in intensity it becomes more and more apparent that the finding of cases is fundamental in preventing the spread of this communicable disease. With the sources of bovine infection cut to a small fraction of their previous importance, the human cases remain the chief sources of infection with the tubercle bacillus. It is readily appreciated, however, that tuberculosis is insidious in its onset, either starting with no symptoms of note at all or with acute or subacute symptoms suggesting for some time some more or less harmless condition such as a common cold. Since this is true, waiting for the patient to present himself because he considers himself seriously ill means that the disease has usually developed well beyond the early stage, making it difficult to treat, and requiring a much longer period for recovery, if indeed recovery is possible, than would be the case had it been detected early. Add to this the fact that during this period of progression of the disease the patient has been a menace as a spreader of infection to those about |