Origin of Acute Tuberculosis in Children.
—An important study was made on acute tuberculosis in children by Prof. R. Debré and Dr. H. E. Brissaud, who reported their results at the March 3 meeting of the National Academy of Medicine. Their aim was to discover the origin of the infection of 418 tuberculous children. In 45% of cases it was not possible to discover the tuberculous contact, but in 55% it was ascertained that the contact was one of the child's parents. In 80% of the cases the contact was known to be tuberculous but had not been isolated for various reasons, such as that he lived with his family while waiting for admission to a sanatorium, he had a leave of absence granted during treatment, or he had a relapse. Further inquiry revealed that no child had been correctly vaccinated and isolated. The authors stressed the necessity of isolating